Skip to main content

CoinDesk Crypto

First Mover: What China Crackdown Means for $18K Bitcoin as Dimon Passes on ‘Tea’

5 years 10 months ago

Bitcoin was flat to slightly lower after briefly climbing Wednesday above $18,000 for the first time since December 2017. 

“There is a tsunami of buying power up against reluctant sellers,” Charlie Morris, CEO of the cryptocurrency fund manager ByteTree, wrote in a note to clients. “These buyers are putting real money behind bitcoin, not the old dribs and drabs normally seen from retail investors.”

In traditional markets, European shares fell and U.S. stock futures pointed to a lower open amid concerns over new coronavirus-related restrictions and lockdowns. Gold weakened 0.5% to $1,863 an ounce. 

Market moves

Related: Bitcoin Options Investors Are Starting to Hedge Against Potential Price Pullback

Bitcoin’s breathtaking rally for the past couple of months has been attributed to all sorts of grand macroeconomic reasons, from the need for a safe haven as the pandemic ravages the global economy once more to marvelous projections about the future role of the cryptocurrency in finance.

Yet, what if the recent run-up was merely the result of miners in China having a hard time finding a place to sell their inventory for the kind of hard cash they need to pay the bills? In other words, fewer new bitcoin may be hitting the market and that’s what’s driving prices higher. That’s an explanation explored in Omkar Godbole’s article on CoinDesk Wednesday.

According to recent note from QCP Capital on its Telegram channel, miners in China are seeing their bank accounts and credit cards frozen as the government tries to crack down on money laundering. That’s a big deal for bitcoin because 70% of its mining power comes from China.

In the process, the government’s squeeze is also affecting a lot of cryptocurrency exchanges catering to Chinese customers, most notably OKEx and Huobi; some questions have been raised about what happened to a couple of executives at such firms, as CoinDesk’s Muyao Shen reported last week. OKEx suspended withdrawals on Oct. 16 when founder Mingxing “Star” Xu was rumored to have been taken into police custody. It announced Thursday that it “will be resuming withdrawals” on or before Nov. 27 as Xu is now said to be a free man again. 

Related: Irish Man Gets 3 Years in Prison for Stealing $2.5M in Crypto Through SIM Hacks

Over the summer, OTC traders in China also felt the heat, and they had a hard time getting access to cash as well.

For all the talk about how bitcoin is the future staring us right in the face with no social distancing or mask, utilities companies, landlords and maintenance employees still need to be paid in fiat. Their bills aren’t denominated in satoshis but in yuan. Thus, there’s always a need for miners to trade into local currency and get on with whatever they do in their lives because many public service providers in China don’t exactly accept tether. According to QCP Capital, a survey done by Colin Wu showed that 74% of miners claim they have trouble selling their inventory to cover operating expenses.

To be sure, Wu’s survey may not have been conducted with the most rigid of standards. And the calendar still insists that this year is 2020. If there’s one thing this year has taught the world it’s that surveys should be taken with a great of salt. Nonetheless, it’s a data point.

Bitcoin’s gains since the start of October have been nothing short of phenomenal. Its price is up about 65% since the start of last month. Over the past few weeks, some of China’s biggest exchanges started seeing accounts frozen and executives all of a sudden, er, out of the office at the moment.

Coincidence? Maybe.

Meanwhile, volume on bitcoin has been healthy, with $1.6 billion traded Wednesday on some of the major exchanges, as CoinDesk’s Daniel Cawrey reported. Open interest in bitcoin options have shot up to a record high of over $4 billion, double what it was in mid-October. What’s more, positions in the options market are as bullish as they have ever been.

About 900 bitcoin are mined every day. At current prices, that’s worth just $16 million. However, in a month it adds up to nearly $500 million, and the lion’s share of that is from China.  

This is an interesting case where the supply curve may be shifting inward just as the demand curve is shifting outward. Either one of those would, all things being equal, raise prices. And while we may now be witnessing both, it’s good to remember that a sudden return to the previous condition for either one of those curves could drop prices as fast as it raised them.  

– Lawrence Lewitinn

Bitcoin watch

Bitcoin is taking a breather, having chalked out a steep rally to three-year highs above $18,000 in the past six weeks.

At press time, bitcoin is trading near $17,700, having faced rejection above $18,000 multiple times in the past 24 hours. Some investors are beginning to position for a deeper pullback with the cryptocurrency struggling to establish a foothold above $18,000.

The one-month implied volatility, which is mainly determined by the demand for call and put options, jumped from roughly 55% to a four-month high of 70.5% in the past two days, suggesting increased expectations for price turbulence over the next four weeks.

Alongside that, the spread between the cost of puts, or bearish bets, and calls eased, as evidenced by the recovery in the one-, three-, and six-month put-call skews. Notably, the one-month gauge bounced from -27% to 14%, according to data source Skew.

The numbers indicate increased demand for put options – a sign of investors hedging against a potential price pullback.

– Omkar Godbole

What’s hot
  • JPMorgan Chase CEO Jamie Dimon said blockchain will have a pivotal role in the future of finance even if bitcoin, the No. 1 cryptocurrency by market capitalization that made blockchain famous, is not his “cup of tea.” (CoinDesk)
  • Bitcoin’s price surge may be driven as much by a drying up in supply as by an increase in demand. That’s because Chinese miners are struggling to sell their crypto in ways that would quickly get them much-needed cash in the face of a government crackdown on local exchanges. (CoinDesk)
  • Ethereum Classic Labs, the Ethereum Classic blockchain’s biggest supporter, released Wrapped ETC, which allows ethereum classic holders to participate in the decentralized finance (DeFi) space based on the Ethereum blockchain, the chain from which Ethereum Classic split after a contentious hard fork in 2016. (CoinDesk)
  • OKB, the native token for leading crypto derivatives exchange OKEx, rallied more than 13% Wednesday on rumors the firm’s founder, Mingxing “Star” Xu, had been released from police custody in China. (CoinDesk)
  • Netherlands-based cryptocurrency exchange Bitonic says it has been “forced” to bring in extra verification measures due to requirements from the country’s central bank. (CoinDesk)
Analogs The latest on the economy and traditional finance
  • Dollar up on COVID-19 case rise, gains curbed by Fed easing expectations (Reuters) The dollar strengthened on Thursday as broad optimism about COVID-19 vaccines ran into worries about rising infection numbers and risks to the fragile global economic recovery.
  • Stock Futures Slide Amid Fresh Lockdowns (WSJ) Weekly jobless claims data and existing-home sales numbers will offer fresh clues on the pace of economic recovery as Covid-19 cases rise.
  • Treasury yields slump amid state coronavirus restrictions (CNBC) A handful of states and cities in the U.S. are closing nonessential businesses, limiting public and private gatherings and imposing mask mandates.
  • Dollar Loses to Euro as Payment Currency for First Time in Years (Bloomberg) The euro was the most-used currency for global payments last month, the first time it has outpaced the dollar since February 2013.
Tweet of the day Related Stories
CoinDesk

SEC’s Clayton Says Payment Inefficiencies Are Boosting Bitcoin’s Rise

5 years 10 months ago

Sounding more bullish on the cryptocurrency than he has in years, U.S. Securities and Exchange Commission Chairman Jay Clayton said Thursday the inefficiencies of modern payment systems are “driving the rise of bitcoin.”

  • Speaking on CNBC, Clayton, who’s stepping down at the end of the year, said: “What we are seeing is that our current payment mechanisms domestically and internationally have inefficiencies. Those inefficiencies are the things that are driving the rise of bitcoin.”
  • Bitcoin was trading a tick below $18,000 at press time Thursday as the bull run continues to drive the cryptocurrency near all-time highs.
  • Clayton rebutted interviewer Andrew Ross Sorkin’s suggestion that bitcoin could ever be regulated as a security. Bitcoin “was much more a payment mechanism and stored value” than a security, he said.
  • That doesn’t mean the SEC is comfortable with the crypto quite yet. Under Clayton, the SEC has repeatedly blocked a number of potential bitcoin exchange-traded funds from launching.
  • Clayton nevertheless seemed to echo JPMorgan Chase CEO Jamie Dimon’s Wednesday prediction that regulators would eventually come knocking as bitcoin continues to grow.
  • “I think we’re going to see this mature and I think we’re going to see more regulation around the payments space,” he said.
Related Stories
CoinDesk

DEX Aggregator Rebrands to Slingshot After Raising $3.1M From Coinbase Ventures, Others

5 years 10 months ago

Decentralized exchange (DEX) aggregator DEX.AG has raised $3.1 million and is rebranding to Slingshot.

Born out of the Concourse Open Community, the same group that created decentralized finance (DeFi) rankings board DeFi Pulse, Slingshot aims to help users find the best price for any given token trade on Ethereum. 

That said, this space has grown quite crowded, with similar solutions such as 1inch, ParaSwap, 0x’s Matcha and even the prominent Ethereum wallet MetaMask.

Related: Open Finance Is Better Than Broken Finance

The round was led by Framework Ventures, with additional participation from many others, including Electric Capital, IDEO CoLab, Coinbase Ventures, Winklevoss Capital, Digital Currency Group, Robot Ventures and more.

Read more: Why the Days of Centralized Exchanges Are Numbered

The dream of making trades without turning over custody of crypto assets to a third party has been a longstanding aim for the industry. DEXs struggled for a long time to compete with centralized competitors, but that’s starting to turn around. For example, one of the leaders, Uniswap, is actually doing more volume than Coinbase by some metrics.

DEX aggregators offer the insight that once users can trade straight from their wallets, they have no reason to look at trades on one exchange. Traders might as well look at all the DEXs for every trade. 

Related: NFT Game Axie Infinity Raises $860K in Governance Token Sale

“The open and permissionless nature of DeFi brings a generational platform shift that presents a new paradigm in financial services, unifying diverse global communities and allowing them to participate in emerging economies or create their own without the need to ask for permission,” Slingshot’s CEO, Clinton Bembry, said in a press release.

Slingshot was first built at a hackathon in 2018 and has seen over $100 million in volume so far, according to the company. 

“Slingshot’s best-in-class DEX aggregator is built to provide the seamless user experience, low latency and inexpensive transactions that DeFi users deserve,” Framework Ventures co-founder Vance Spencer said in a press release.

Related Stories
CoinDesk

NFT Game Axie Infinity Raises $860K in Governance Token Sale

5 years 10 months ago

The CryptoKitties-meets-Pokemon blockchain game Axie Infinity has raised $860,000 in a strategic sale of its AXS governance token.

The funding round, led by Delphi Digital, is meant to help further gamify yield farming. 

Like CryptoKitties, Axies are non-fungible tokens (NFTs) represented as cryptographically unique cartoon characters that can’t be replicated. And like Pokémon, they are born to battle. 

Related: DEX Aggregator Rebrands to Slingshot After Raising $3.1M From Coinbase Ventures, Others

“We’ve overtaken CryptoKitties by quite a lot,” co-founder Jeffrey Zirlin said in an interview. Axie Infinity is currently the only Ethereum-based NFT project with over 10,000 monthly active users, according to a press statement. The data site DappRadar shows about 2,500 users in the last 24 hours, making it currently the most popular game on Ethereum.

Read more: The NFT Game That Makes Cents for Filipinos During COVID

The Vietnam-based startup behind the game, Sky Mavis, is the most recent Binance Launchpad project. Zirlin told CoinDesk that the AXS governance token has been in the works for over two years.

“The idea of the governance token is to align the incentives of everyone in the ecosystem from payers to content creators to core developers,” Zirlin said.

Related: Mintbase Raises $1M Seed Round to Bring NFTs to NEAR Protocol

He also said the tokens will not only have governance functions but also fee-sharing features where proceeds will go into a Community Treasury. 

Zirlin told CoinDesk that a new game mode will be launching on the platform in early 2021, where, in an Animal Crossing-like setting, players can own pieces of land and farm to earn governance tokens in-game. 

Zirlin said he had been asked by many people, “When will yield farming be available as actual farming in your game?” With Axie’s upcoming land system, users will be one step closer. 

Related Stories
CoinDesk

Gemini Exchange Is Using ClearBank for UK Banking Services

5 years 10 months ago

ClearBank says it has been chosen by the Gemini cryptocurrency exchange to provide its U.K. banking services.

  • U.S.-based Gemini had announced in late September that it was expanding “fully” into the United Kingdom, offering trading and custody services.
  • ClearBank said in a press release Thursday it is providing Gemini users with account numbers and sort codes via a single API.
  • It is further bringing the exchange access to U.K. payment rails, such as Faster Payments and the Clearing House Automated Payment System, known as CHAPS.
  • Gemini launched in the U.K. after being awarded an Electronic Money Institution (EMI) license from the Financial Conduct Authority.
  • The “cloud-based” challenger bank said it was able to offer Gemini users pound sterling deposits and withdrawals “in seconds” using Faster Payments.
  • “Gemini is … one of the first crypto firms ClearBank has worked with, based on its exemplary approach to compliance and innovation,” said ClearBank CEO Charles McManus.

See also: Gemini Exchange Building ‘Wrapped Filecoin’ for the Ethereum Network

Related Stories
CoinDesk

OKEx Exchange Says Crypto Withdrawals to Restart by Next Friday

5 years 10 months ago

Troubled exchange OKEx has announced it will soon allow withdrawals that had been paused after an executive holding the cryptocurrency keys was held by authorities for questioning.

  • In an update on Thursday, OKEx said the private key holder “has completed assisting the authorities in a previously referenced investigation.”
  • “OKEx was confirmed not to have been involved in any wrongdoing or illegal activities, and the private key holder has now returned to his normal business functions,” the post reads.
  • It will therefore allow “unrestricted withdrawals” by Nov. 27.
  • Before then, the exchange will carry out security checks to ensure normal operations of its hot wallets and safe transfers of funds.
  • This may suggest OKEx is expecting a flood of withdrawals when the service resumes.
  • “We will be working with immediate effect on improving our internal processes so that this type of situation is avoided in the future,” OKEx CEO Jay Hao told CoinDesk.
  • Users’ cryptocurrency has been tied up since Oct. 15, when the unnamed keyholder was taken into police custody.
  • Some reports have suggested OKEx founder Mingxing “Star” Xu is the individual concerned, although the exchange said it is “unable to comment on rumors or speculation at this time.”
  • OKEx said in the notice it has always maintained 100% reserves, so user funds may be withdrawn “without any restrictions.”
  • The company has a headquarters in Hong Kong, while being officially based in Malta.
  • The exchange’s OKB token has risen amid expectation of withdrawals returning, trading at $5.68 at time of writing, up 13% over 24 hours.
Related Stories
CoinDesk

Irish Man Gets 3 Years in Prison for Stealing $2.5M in Crypto Through SIM Hacks

5 years 10 months ago

A Dublin man involved in the theft of more than $2 million in cryptocurrency through SIM-swap attacks has been sentenced to almost three years in prison.

Conor Freeman, 21, was handed down a two-year and 11-month sentence in the Dublin Circuit Criminal Court on Tuesday. He had pleaded guilty to several charges involving “guile and deception,” according to Judge Martin Nolan.

As reported by The Irish Times, Freeman was found guilty of engaging in the possession of proceeds of crime, theft and dishonestly operating a computer. He had 142.7 bitcoin in his possession when arrested, an amount worth $2,502,790 at time of writing.

Related: Deutsche Bank Says Investors Increasingly Prefer Bitcoin Over Gold as Inflation Hedge

Freeman had not operated alone in his criminal activity, despite being characterized by his legal counsel as “very much a loner” in his younger years. He had been part of a group of six men who hacked cryptocurrency accounts over a three-day period in May, 2018.

The group identified three potential victims on social media where they obtained email addresses and phone numbers. Contacts within mobile operators would then transfer each victim’s phone number onto a SIM card purchased by the group.

In turn, the crew used methods for recovering passwords on various platforms and them sent to the victim’s phone number which was now in their possession.

The victims, Darran Marble, Seth Sharpiro and Micheal Templeman, respectively lost $100,000, over $1.9 million and more than $167,000 in cryptocurrency.

Related: Market Wrap: Bitcoin Hits $18.4K; $260M in Ether Options Expire in December

See also: Alleged Promoter of BitConnect Crypto Scam Charged in Australia

Freeman had been responsible for sifting through victims’ emails to identify cryptocurrency accounts.

The proceeds of the hacks were split among the group. When Freeman was finally caught by the Gardai, Ireland’s national police force, he had already spent €130,000 (US$153,996) of the proceeds.

Following his arrest, Freeman handed police an electronic wallet containing the remaining bitcoin he had acquired from victims as well as the access keys – “exceptional” assistance that was noted in court.

The fates of the five U.S.-based co-accused have not yet been made public. Freeman had been identified by the U.S. Department of Homeland Security for his involvement in the crimes using various online monikers.

Related Stories
CoinDesk

Deutsche Bank Says Investors Increasingly Prefer Bitcoin Over Gold as Inflation Hedge

5 years 10 months ago

Bitcoin’s appeal as an alternative store of value asset is strengthening, according to analysts at Germany-based investment bank Deutsche Bank.

“There seems to be an increasing demand to use bitcoin where gold used to be used to hedge dollar risk, inflation, and other things,” Jim Reid, managing director, head of global fundamental credit strategy, said, according to ZeroHedge.

Bitcoin has long been considered by supporters as digital gold, due to its limited, predictable supply and use case as a store of value outside banking influence.

Related: Irish Man Gets 3 Years in Prison for Stealing $2.5M in Crypto Through SIM Hacks

While bitcoin has gained 144% this year, gold is up 22%. Both assets seem to have benefitted from the inflation-boosting monetary and fiscal policies launched by central banks and governments across the globe to contain the economic fallout from the coronavirus pandemic.

The cryptocurrency has rallied over 25% this month alone despite hopes for a swift global economic recovery on potential coronavirus vaccines and improved risk appetite in stock markets. Gold, however, has lived up to its reputation as a haven asset by falling 1% so far this month.

The divergence between gold and silver on the one hand, and bitcoin on the other, is one of the oddities of this month, according to Reid. U.S.-based drug makers Pfizer and Moderna announced encouraging results for their experimental coronavirus vaccines earlier this month, triggering a rotation of money out of gold and other haven assets and into risk assets.

Reid told Bloomberg earlier this month that coronavirus vaccines are equivalent to global fiscal stimulus. Christian Nolting, global chief investment officer at Deutsche Bank Wealth Management, said inflation could rise moderately in 2021 and 2022, boding well for stocks and gold.

Related: Market Wrap: Bitcoin Hits $18.4K; $260M in Ether Options Expire in December

At press time, bitcoin is trading near $17,550, while gold is changing hands at $1,860 per ounce.

Also read: Gold Lags Far Behind Bitcoin as Vaccine Optimism Buoys Markets

Related Stories
CoinDesk

30 Japan Firms to Collaborate on Private Digital Yen: Reuters

5 years 10 months ago

A group of Japanese companies has said it will develop and test a private digital currency that would work alongside cash.

  • Reuters reported Thursday that about 30 firms from sectors such as telecoms, utilities and retail will carry out the trials in 2021.
  • The digital yen would be built on a common settlement platform and issued by banks during the trials, later possibly being issued by other entities.
  • “We don’t want to create another silo-type platform. What we want to do is to create a framework that can make various platforms mutually compatible,” Hiromi Yamaoka, chair of the group and formerly an executive at the Bank of Japan, told Reuters.
  • The overarching aim would be to encourage people in the cash-loving country to use a digital form of money, the group said.
  • The Bank of Japan, which is the nation’s central bank, has also said it would work on a national digital currency and hold tests next year.

See also: Bank of Japan Forms New Team to Explore Central Bank Digital Currency

Related Stories
CoinDesk

Solidus Labs Believes Its Crypto Surveillance Tool Can Help Launch a Bitcoin ETF

5 years 10 months ago

Market manipulation is one of the main concerns the U.S. Securities and Exchange Commission (SEC) has cited in rejecting a number of bitcoin exchange-traded fund (ETF) applications. Solidus Labs, a technology firm, believes it has developed a technical surveillance solution to address this issue.

Solidus announced Wednesday it was rolling out a market surveillance tool to monitor crypto exchange transaction data and flag potential manipulation across different platforms, as part of an effort to address ongoing regulatory concerns about crypto markets. 

“These are issues that have been largely resolved in traditional markets through market surveillance systems [that] were designed for traditional markets,” said Solidus Labs Chief Operating Officer Chen Arad. 

Related: ‘Digital Mercenaries’: Why Blockchain Analytics Firms Have Privacy Advocates Worried

Proponents say an ETF would make bitcoin accessible to a wider swath of retail investors by offering a regulated product that would be available on major investment platforms, such as Charles Schwab or TD Ameritrade. 

However, a number of ETF applications have been rejected by the SEC, which has said the bitcoin market isn’t large enough to properly surveil. Chairman Jay Clayton, who will leave the role at the end of the year, has said in the past that a bitcoin ETF couldn’t be approved until the agency is confident the market was free from manipulation. One example of manipulation is wash trading, when a few accounts trade back and forth to make volume appear higher than it is using bots. 

In 2019, the agency rejected Bitwise’s effort, saying there needed to be a surveillance-sharing agreement between an exchange and a market of “significant” size as one potential example of how to address this concern. 

How it works

Solidus’ tool has four parts: data collection, data storage, data processing and reporting, Arad said. 

Related: SEC Is Willing to ‘Try’ a Tokenized ETF, Chairman Says: Report

The program collects data from a number of parties conducting transactions, mainly exchanges, acting as a sort of intermediary for the information. This ensures that exchanges aren’t required to share potentially proprietary trading data with each other, Arad said. 

“The first part is being able to collect the data in a fully anonymized, obfuscated and encrypted way, and assembling it … in a multi-tenant database,” he said. 

Solidus’ system then processes the information, comparing buy and sell data to look for potential wash trading or other forms of market manipulation. 

Read more: Prime Broker Bequant Adds Risk-Monitoring Service in Push for Added Compliance

Part of this processing includes comparing market information from accounts on one exchange to its “neighbors,” meaning accounts with similar attributes, said Solidus CEO Asaf Meir.

Neighbors are effectively a way of creating different types of broad profiles, which in turn act as a sort of average baseline for comparing account activity, if a user’s behavior diverges from the norm.

Solidus looks at an exchange’s reporting requirements, what alerts should be reported and which parties might be involved before sending these alerts to its clients. 

“This type of data is extremely sensitive and confidential, and by the way that’s also how generally our product works right. Our product works off of private data that exchanges, broker dealers, regulators provide us with,” Meir said.

More broadly, this same technology can be used in different jurisdictions, potentially acting as a sort of global standard to help exchanges worldwide comply with the Financial Action Task Force travel rule, Arad noted. 

In use

Solidus is in discussions with a number of crypto exchanges and regulatory agencies to begin operating its surveillance tool in the U.S., though Arad and Meir declined to identify potential clients on the record, citing ongoing discussions. 

Chris Land, general counsel at the Wyoming Division of Banking, said his agency is one of the regulators working with Solidus and evaluating its solution.

The company has already helped contribute to a section on market manipulation in an upcoming manual the division plans to publish, he said.

Read more: Goldman Sachs Veterans Raise $3 Million to Fight Crypto Manipulation

The tool is already in use with some other, non-U.S. clients, Arad said, adding that it had been developed specifically to address regulatory concerns. 

“We were working with specific exchanges in a particular jurisdiction where they were required to apply for licensing. In that process we also started working with the regulator, and we generally developed the product with regulators,” he said.

Related Stories
CoinDesk

Electrum Developers Apply Fix After Apple Update Bricks Bitcoin Wallets

5 years 10 months ago

After the most recent Mac update caused major problems for one of Bitcoin’s oldest wallets, its development team has rolled out a fix.

Originally raised as an issue on Github, the Big Sur update is bricking MacOS Electrum clients, a Bitcoin software wallet which is a favorite of power users because of its complex tooling and user controls. The Electrum team announced today that a new release fixes the issue.

“Currently, the latest release of Big Sur has completely broken Electrum [for Mac devices]. You can’t open the app or load any of your wallets,” one Electrum user, Nico, told CoinDesk.

Related: New Mac Update Leaves Users No Room to Escape Data Collection

The issue was opened on Electrum’s Github on Aug. 1, around the time Apple released Big Sur’s beta.

While the “root cause is still unknown,” Electrum developer SomberNight said in the Github issue page, it’s related to Big Sur’s treatment of Python, the coding language that Electrum is written in. 

To work around the problem, Electrum users can run the software from source (that is, by manually compiling the source code) or they can bundle an older version of Python into their software. The Electrum team’s fix incorporates the latter solution.

For Bitcoin, Apple’s problems hit home

The snafu is the first case of Apple’s latest release disrupting the Bitcoin realm, but it’s not the first time the update has caused issues.

Related: Brainwallets: The Bitcoin Wallet You Probably Shouldn’t Use (Unless You Have To)

Upon the version 11.0 release last week, an error in Apple’s servers caused worldwide shutdowns of Mac hardware running the update. These servers process OCSP requests, or the data packets that verify user credentials for applications.

Mac users soon discovered that the Big Sur update and the error were related. Big Sur sends OCSP requests for every online and offline application that a user opens, and if these requests fail, then the computer fails too.

This activity logging feature has been present since Apple’s Catilina update, but Big Sur makes it so Mac users can’t trick the feature with firewalls and VPNs like they once could.

These requests are transmitted unencrypted, raising privacy concerns over how this data may be intercepted and used by third parties.  From the perspective of a Bitcoin user, this feature would broadcast every time a wallet, coin mixer or other Bitcoin-related service is used on their device.

Related Stories
CoinDesk

Duality Technologies Launches Platform for Analyzing Big Data While Keeping It Private

5 years 10 months ago

Encryption may not seem sexy, but it’s never been more important. 

Duality Technologies, a  provider of privacy-enhancing tech, (PETs), is launching SecurePlus Statistics, a privacy-enhanced “statistical analysis solution” that uses Homomorphic Encryption (HE).

While it may sound dry, it marks a step forward in practical uses of HE, which lets multiple actors conduct data analysis on a variety of datasets while keeping that information encrypted and protecting things like personally identifiable information. 

Related: Balaji Srinivasan, HashKey Back $2M Round in Twitter Privacy Tool Mask Network

“HE is relevant for any industry dealing with highly sensitive data, such as health care and the financial services industry, but other regulated industries such as telecom, insurance and academic research that involves personal data, can also benefit from HE applications,” said Dr. Alon Kaufman, CEO and co-founder of Duality, in an email. 

“In financial services industries, HE can facilitate privacy-enhanced, collaborative financial crime investigations across firms and legislations, by enabling institutions to share information and insights while complying with privacy regulation.”

What is homomorphic encryption?

HE lets math calculations be done on data in its encrypted form. The result of the calculations is also encrypted, but when the result is decrypted it is identical to the result had the data not been encrypted in the first place. 

So if data is sent to a commercial cloud, large-scale analysis can be done on it without putting sensitive information such as people’s medical or financial information at risk. 

Related: New Mac Update Leaves Users No Room to Escape Data Collection

In encryption, plaintext is converted to ciphertext, or its encrypted form. Ciphertext can be converted back to plaintext, but only by certain parties possessing a secret key that decrypts the information using that secret key. 

Read more: Community Behind Privacy-Focused Smart Contract Forges Ahead After Settlement

In traditional forms of encryption, data is only protected in storage and during communications. In the case of HE, which is named for homomorphisms in algebra (or the ability to mirror the operations on one algebraic structure with operations on another), analysis can be done without access to that secret key which would decrypt the information. 

When thinking of HE, said Kaufman, imagine placing the pieces of a jigsaw puzzle, representing your data, in a box. Then you lock that box using encryption and hand it to somebody else. This person is actually able to assemble the puzzle (run analytics on your data) without unlocking the box and seeing the pieces, because the box is still  encrypted. You then receive the box back and unlock it to see the assembled puzzle, or the encrypted results that you then decrypt. 

“In this way, Homomorphic Encryption enables computations, including advanced analytics and Machine Learning, on encrypted data, assuring data privacy throughout the analytics cycle,” said Kaufman in an email to CoinDesk. “Homomorphic Encryption allows multiple parties to collaborate on data without seeing each other’s data assets, thus generating valuable insights from them.”

Why homomorphic encryption matters now

In a world where privacy concerns are advancing, particularly amid the pandemic, and disparate privacy laws are resulting in countries revoking some form of data access to others, tools like HE could give companies a way to get data insights without creating the potential not just for non-compliance, but also for big data abuse that has driven concerns about Big Tech. 

Earlier this year researchers showed how HE can enable analysis on genomic data in such a way that it preserves data privacy. Such analysis can help us understand complex or novel diseases, such as COVID-19. 

Duality piloted SecurePlus Statistics at the Tel Aviv Sourasky Medical Center in Israel where it was used to analyze data regarding the prevention, diagnosis and treatment of cancer studies while protecting personal health information. 

Read more: EU Privacy Shield Ruling Is an Opportunity and Conundrum for Decentralized Tech

Numerous proposals have also been written for how HE could benefit blockchain-based projects. One paper, published in 2019, proposed using HE to protect sensitive data generated from the ever-expanding internet of things (IoT). 

“Previous blockchain-based IoT systems have issues related to privacy leakage of sensitive information to the servers as the servers can access the plaintext data from the IoT devices,” reads the abstract. “So, we present the potential of integration of blockchain based-IoT with homomorphic encryption that can secure the IoT data with high privacy in a decentralized mode.”

Another proposal, published earlier this year, experimented with applying blockchain technology in edge computing to improve edge computing’s performance of secure storage and computation. The researchers introduced HE  as a way to ensure the “noncorrelation, anonymity and supervision of identity privacy in blockchain systems,” and found promising results they said would lay the groundwork for future research. 

“Privacy-preserving data collaboration – even among competitors – is also important in solving other global challenges, such as fighting different types of cyber and financial crimes that are committed by increasingly sophisticated global networks,” said Kaufman. 

Related Stories
CoinDesk

Mintbase Raises $1M Seed Round to Bring NFTs to NEAR Protocol

5 years 10 months ago

Lisbon-based non-fungible token (NFT) platform Mintbase has closed a $1 million seed funding round.

The round, led by Chinese venture capital firm Sino Global and with participation from D1 Ventures, Block Oracle Capital, Arweave and angel investors, is meant to help Mintbase stand out from a growing pack of NFT platforms.

“Being a marketplace is really an afterthought,” Mintbase CEO Nate Geier said in an interview. “The goal was to build the best minter out there, and we did that.” 

Related: First Mover: As Bitcoin Shoots Past $18K, There’s Comfort in the Crowded Trade

The new funding allows the team to actively hire developers and designers to prepare for a testnet launch on NEAR before the end of this year. Building on NEAR will be in addition to its continued work on Ethereum. Geier also hinted that a governance token may be in the works. 

What differentiates Mintbase from similar NFT marketplaces such as SuperRare, Rarible or OpenSea, Geier says, is the lack of focus on one specific category of NFT. 

“They get more publicity and we get more usage,” he added, pointing out that many people log onto Mintbase to mint their NFTs only to trade them on OpenSea.

Read more: The Inevitable Marriage of Yield Farming and NFTs, Explained

Related: CryptoGenies? Digital Avatars Are Coming to Dapper’s Flow Blockchain

The NFT ticketing platform that launched Ethereum in 2019 decided to expand to other networks in July due to high gas costs, adding competing smart-contract blockchain NEAR Protocol to the mix. When travel and events came to a halt during the COVID-19 pandemic, the team behind Mintbase looked to other use cases for NFTs, like partnering with permanent storage network Arweave. 

“We’re just scratching the surface of what we can do with NFTs,” said Mintbase co-founder Carolin Wend. “Now that we’re getting to the point of lower transaction fees, that will be huge for mass adoption.” 

Investor Sino Global Capital said in a tweet thread, “We weren’t interested in just acquiring a few NFTs for a few trades. We are investing to support their vision with our China-centric network.”

Update (Nov. 19, 0:02 UTC): Mintbase is not leaving Ethereum, it is building on NEAR as well. The story has been updated for clarity.

Related Stories
CoinDesk

Tor Developers Pursuing ‘Anonymous Tokens’ to Stop Hacks and DoS Attacks

5 years 10 months ago

The privacy-oriented browser Tor (The Onion Router) is researching ways “anonymous tokens” could counter Denial of Service (DoS) attacks – a pressing issue for the network. 

Tor has been subject to DoS attacks, degrading its performance. While there are technical fixes Tor has worked to implement, the nature of the network and the anonymity of the traffic on it make it particularly susceptible to DoS attacks. 

In August, Tor introduced the idea of using anonymous tokens to counter such attacks, allowing them to differentiate between “good” and “bad” traffic, and to avoid implementing user accounts, which most sites and networks use to identify traffic and bad actors. 

Related: Crypto Exchange Liquid Says User Data Possibly Exposed in Security Breach

During last week’s “State of the Onion” address, when the Tor team gave updates on projects and forecasted new developments for 2021, the team reinforced their interest in developing these anonymous tokens. 

“Memory is an amazing thing,” said George Kadianakis, a Tor Network team developer. “It allows us to experience the world, remember the things we’ve been to and remember the nice food we ate.

“It’s also particularly important in our digital life. At Tor, we don’t have the concept of memory. The Tor network does not keep track of its clients, does not use cookies or anything, and every claim that comes in and comes out we forget about it. So Tor is memoryless. It’s stateless. And this fact causes some issues.”

A DoS attack is one such issue. 

What is a DoS attack?

Related: Token Projects Are Not Happy With KuCoin’s Handling of $280M Hack

A DoS attack disrupts a website by initiating thousands of connections to it, overwhelming it and causing it to crash. 

Tor is particularly vulnerable to such attacks because of its emphasis on anonymity. While a normal network would have your identity tied to an account or the like, Tor does not; therefore, it doesn’t have a great way of differentiating malicious traffic from non-malicious traffic. 

The process of navigating the Tor network to secure a connection between a server and remote user also requires intensive work by a central processing unit (CPU), which can get to a state where it’s maxed out and unable to accept new traffic, a feature DoS attacks exploit. 

Read more: Tor Project Launches Membership Program to Boost Agility, Funds

“The attacks exploit the inherent asymmetric nature of the onion service rendezvous protocol, and that makes it a hard problem to defend against,” reads a post that examines solutions to DoS attacks.. 

“During the rendezvous protocol, an evil client can send a small message to the service while the service has to do lots of expensive work to react to it,” the post reads. “This asymmetry opens the protocol to DoS attacks, and the anonymous nature of our network makes it extremely challenging to filter the good clients from the bad.”

How anonymous tokens could help

Rather than implementing accounts or cookies, both of which would undermine Tor’s mission, Kadianakis proposed tokens that could be included in a user’s traffic request. These tokens would allow websites accessible through the Tor network to “intelligently prioritize which requests it answers.”

“We could use anonymous tokens. Tokens are a part of the internet that use blockchains and other protocols like Cloudflare’s Privacy Pass,” saids Kadianakis during the presentation. “It’s basically like a train ticket. By having a train ticket you can show that you’ve done some effort to acquire it, but it doesn’t tie to your identity. So if you drop it on the floor and someone else picks it up they cannot impersonate you and they don’t know who you are.”

The scenario he envisioned is one where the onion service could issue these tokens and give them to clients who have already demonstrated their trustworthiness (in ways yet to be determined). These trusted clients would then give their tokens to the onion service when they connect and, in doing so, get service before an untrusted user (eg., a potential attacker). 

Read more: ‘Digital Mercenaries’: Why Blockchain Analytics Firms Have Privacy Advocates Worried

Kadianakis said tokens could also be used to design a secure name system so people can register names for their own use with tickets, which could help encourage audience activities. 

“The anonymous nature of our network makes it challenging to filter the good clients from the bad. There is no one established attacker, but rather an ongoing challenge,” according to Isabela Bagueros, executive director of the Tor Project.

“That is why we are focused on investigating methods to rate limit or otherwise reduce the ability of clients to make large numbers of connections to an onion service without violating a client or service’s privacy,” she said. 

Users could also apply their tokens toward acquiring private bridges and exit nodes, which would potentially provide additional security. Private bridges are how users access the Tor network in places where censors have blocked access to public Tor relays by blocking their IP addresses. They have a collection of private bridges that are not publicly available; these can be handed out a few at a time to clients in order to impede enumeration and IP address-blocking by censors.

Tokens may help with one crypto hack

Another attack vector for hackers are “relays.” Relays route traffic and obscure traceable and identifiable IP addresses, with an exit relay being the final one that connects users to a site. 

As CoinDesk reported in August, a hacker was using his or her position as a “major exit relay host to stage sophisticated person-in-the-middle attacks, stripping websites of encryption and giving her/him full unrestricted access to traffic passing through her/his servers.” The hacker was using this access to steal cryptocurrencies. 

When asked what impact tokens might have on mitigating such an attack, Kadianakis said a token-based approach could improve usability in a way that makes phishing attacks like this infeasible, but it all depends on the integration. 

Read More: Start9 Labs Pitches a Private At-Home Server. And It Works

“Another approach to this issue, one that we’re already taking, is to strengthen the onion services ecosystem and encourage more service and sites to use onions, as onion services do not use exit nodes and therefore bypass this kind of attack completely,” he said in an email to CoinDesk. 

For exits and exit safety, the Tor Project is investigating ways of creating a trusted set of exit relays with known and verified operators, to reduce the incidence of attack from exit usage, said Bagueros.  

“We are also looking into requiring captcha-issued tokens in order to use these exits. In this way, these exits should be used less for automated scraping and spam, which should reduce the rate at which their IP addresses are banned from sites, and generally improve their IP address reputation,” she said. 

The team is still researching tokens and does not have a timeline for development. 

Proof-of-Work

Another approach the original blog post lays out is a proof-of-work system to acquire tokens. 

Onion services can ask the client to solve a proof-of-work puzzle before they’re allowed to connect. 

“With the right proof-of-work algorithm and puzzle difficulty, this can make it impossible for an attacker to overwhelm the service, while still making it reachable by normal clients with only a small delay,” read the post. 

In the case of DDoS attacks, Kadianakis said Tor could employ proof-of-work tokens created by the clients themselves and sent directly to the service.

Read more: How a Hacker Launched a Decentralized Network to Track Internet Censorship

“Proof-of-work is one way to make it more expensive for clients to consume service resources in bulk that we’re investigating,” said Bagueros. “We’re also looking into … a token that signifies the quantity of work spent compactly without impacting privacy.”

Tor has not yet found a privacy-oriented blockchain it sees as sufficient for this, but remains hopeful one will be found. 

In terms of other ways of earning these tokens, Tor lays out a number of options, such as allowing connected sites to award tokens to trusted users or giving users tokens with every donation they make to the project. It is also in the midst of brainstorming what additional benefits tokens could offer, how they could interact with each other and what wallets for them might look like, including a Tor Browser wallet integration.   

There is currently no discussion about monetizing tokens. 

Related Stories
CoinDesk

Market Wrap: Bitcoin Hits $18.4K; $260M in Ether Options Expire in December

5 years 10 months ago

Higher spot volumes Wednesday – and record volumes for the past month – are helping push bitcoin higher. Meanwhile, ether options for December pass 550,000 ETH.

  • Bitcoin (BTC) trading around $17,688 as of 21:00 UTC (4 p.m. ET). Gaining 0.17% over the previous 24 hours.
  • Bitcoin’s 24-hour range: $17,571-$18,474 (CoinDesk 20)
  • BTC below its 10-day moving average but above the 50-day, a sideways signal for market technicians.

Bitcoin made gains for the third straight day this week, going as high as $18,474 according to CoinDesk 20 data. The price slipped, however, to $17,688 as of press time. 

Read More: Bitcoin Indicator Suggests Bull Market Is Still in Early Phase

Related: Vijay Boyapati’s Four Mental Models for Valuing Bitcoin

The last time bitcoin was in this range occurred way back in December 2017. “In general, the market sentiment is still very bullish,” said Andrew Tu, an executive at quant firm Efficient Frontier. “It is possible that we range between $17,500 and $18,300 for a bit. However, it seems likely in the coming days that we break the $18,300 resistance.” 

Constantin Kogan, a partner at Wave Financial, points to a $18,690-$18,950 “resistance” area where exchange books have a number of sell orders piled up, though he expects bitcoin to push above that soon. “I’m bullish, personally,” he told CoinDesk. 

Volumes were much higher than normal Wednesday, with major spot USD/BTC over $1.6 billion as of press time, surpassing this past month’s Nov. 5 high. 

“We’ve had a strong run up from $13,200, which was only a couple of weeks ago, and I think it’s now gunning for the all time high,” noted Rupert Douglas, head of institutional sales for crypto brokerage Koine. However, Douglas’ outlook mirrors Sir Isaac Newton’s famous dictum that what goes up must come back down. “At some stage we’re going to see a flush down to $13,000. The trend is up but it won’t be without volatility,” said Douglas.

Related: Bitcoin’s Rally Could Be Caused by a Supply Crunch in China

The bitcoin derivatives market, which was nascent in the last major bull run, continues to see open interest rise. Bitcoin options on major venues, for example, are at over $4 billion as of press time, the highest they have ever been and a sign some smart money is looking to hedge away any risks volatility may – or may not – bring. 

“Today’s active options market – which was nonexistent back in 2017 – is keeping any meteoric rises in check,” said Micah Erstling, a trader at firm GSR. 

Nevertheless, Erstling sees more money piling in because of crypto’s eye-popping performance so far in 2020. “Seasoned investors are finding it increasingly hard to argue with bitcoin’s performance – over 133% year-to-date, and up 100% over the last year.”

Ether options traders bet on 2.0

The second-largest cryptocurrency by market capitalization, ether (ETH), was down Wednesday, trading around $472 and slipping 2% in 24 hours as of 21:00 UTC (4:00 p.m. ET).

Read More: Ethereum Classic Gets DeFi Treatment With Wrapped ETC

The amount of open ether options for December expiration has surpassed 550,000 ETH, worth more than $260 million as of press time.

Traders are likely taking bets about the future of Ethereum’s technical roadmap to “2.0”, an ambitious effort to insert staking and higher efficiency while porting over its native asset, ether.  

“Our theory is that this open interest pattern in ETH was strictly due to traders positioning themselves for an ETH 2.0 phase 0 launch, or yet another delay,” said Greg Magadini, chief executive officer of options data aggregator Genesis Volatility. “Even while BTC options had open concentrated in different expiration months, ETH consistently had open interest concentrated in December.”

Other markets

Digital assets on the CoinDesk 20 are mixed Wednesday, mostly red. Notable winners as of 21:00 UTC (4:00 p.m. ET):

Notable losers:

Read More: Zcash Undergoes First Halving as Major Upgrade Drops ‘Founders Reward’

Equities:

Commodities:

  • Oil was up 0.69%. Price per barrel of West Texas Intermediate crude: $41.64.
  • Gold was in the red 0.51% and at $1,869 as of press time.

Treasurys:

  • The 10-year U.S. Treasury bond yield climbed Wednesday jumping to 0.870 and in the green 1.5%.
Related Stories
CoinDesk

Promoters of Rapper TI’s 2017 ICO Ordered to Pay $103K Penalty

5 years 10 months ago

The U.S. Securities and Exchange Commission (SEC) prosecution of rapper T.I.’s 2017 initial coin offering (ICO) has netted $103,000 in court-ordered fines and penalties for the agency, this time from associates of the Atlanta-based act.

Defendants Chance White, Owen Smith and William Sparks were all named in the original September FLiK ICO suit for alleged securities law violations and for boosting the coin without disclosing their ties. Eight individuals were charged in September and seven quickly agreed to settle, including White, Smith and Sparks.

The trio on Tuesday consented to the final terms of their penalty without admitting or denying wrongdoing, according to Law360, which first reported the consent order. All three are now barred from future securities violations, and prohibited from dealing with digital securities for the next five years.

Related: Grayscale’s Ethereum Trust Granted SEC Reporting Company Status

It was not immediately clear on Wednesday if fellow FLiK defendant Ryan Felton had settled the charges against him. The film producer faces allegations of fraud and manipulation from the SEC.

Read more: SEC Charges Rapper TI With Securities Violations for Promoting 2017 ICO

Related Stories
CoinDesk

Binance Sues Forbes for Defamation Over ‘Tai Chi’ Document Leak

5 years 10 months ago

Binance Holdings Limited sued Forbes Media LLC for defamation Wednesday over a story last month that purported to reveal regulatory evasion tactics employed by the global cryptocurrency exchange.

The suit, filed in the U.S. District Court in New Jersey, claims Forbes and two writers, Michael del Castillo and Jason Brett, harmed Binance by publishing a story that “contains numerous false, misleading and defamatory statements.” 

In the suit, Binance denies a laundry list of allegations in the Forbes story and even refuted the veracity of the “Tai Chi” documents at its core. In the document, Binance demands that Forbes take down the article and pay punitive damages to be determined at trial.

Related: Binance Discontinues UK Pound Stablecoin Calling It Just an ‘Experiment’

The suit is the latest escalation of long-simmering tensions between Binance and the news media. Binance is one of the largest cryptocurrency exchanges in the world and also one of the most closely scrutinized. Central questions swirl around it and its founder Changpeng Zhao, better known to the industry as CZ.

But while Binance has sued other firms for defamation in the past, it has shied away from doing the same to the media. Instead, Binance tends to fight stories in the court of public opinion, namely on social media.

“We exercise and support freedom, including freedom of information and freedom of the press, as well as accountability,” a Binance spokesperson told CoinDesk, adding: 

“We want to assure the media that this suit doesn’t represent any threats to the reporting of Binance. We and any leading industry players need media to keep us accountable and reporting information to the public.”

Related: $300M in Bitcoin Flow to Binance From Huobi as China Gets Tougher on Exchanges

Forbes and Michael del Castillo did not immediately respond to separate requests for comment.

Read the complaint:

Related Stories
CoinDesk

DeFi Exploits Can’t Be Pinned on Flash Loans, Industry Leaders Say

5 years 10 months ago

Nine months ago, in a Denver convention center, a booth sat empty.

Littered with token stickers, the table was supposed to hold the physical representatives of decentralized finance (DeFi) protocol bZx. It remained empty, however, as the team struggled to make sense of the digital forces twisting their young project. 

bZx, as they would come to find out, was 2020’s flash loan “patient zero”.

Related: Ethereum Classic Gets DeFi Treatment With Wrapped ETC

New cases haven’t stopped in the months since then. Take November: $2 million from Akropolis, then $3.3 million from Cheese Bank, followed by $6 million from Value Finance and finally $7 million from Origin Protocol.

Flash loans remain the common thread through all those recent attacks. These DeFi-native tools enable a savvy investor to take out unbacked loans and amass leverage behind a position. For example, Monday’s Origin Protocol attacker pulled a 70,000 ETH loan from decentralized derivatives platform dYdX. It enabled the attacker to up the amount of loot sucked out of the project.  

Yet, while they may be the string connecting these exploits, flash loans are not the cause in and of themselves, industry leaders told CoinDesk.

Oracle manipulation and flash loans

It may not even be fair to characterize the recent DeFi exploits as “flash loan attacks,” Chainlink co-founder Sergery Nazarov told CoinDesk in an email.

Related: Origin Protocol Loses $7M in Latest DeFi Attack

Nazarov said flash loans at their core are just lump sums of capital thrown at success trade positions. The real issue lies with poorly constructed DeFi projects.

“While many are trying to frame this trend as the result of flash loans, most of these exploits could have been committed by any well-capitalized actor. All a flash loan does is temporarily make anyone a well-capitalized actor,” Nazarov said. 

Read more: Everything You Ever Wanted to Know About the DeFi ‘Flash Loan’ Attack

DeFi’s projects are smart contracts deployed to the Ethereum blockchain. They require outside information, namely pricing data, to execute actions baked into each contract. 

That pricing information is liable to distortions simply because of how the Ethereum blockchain packages transactions – that is, every 15 seconds. Prices can move every which way in 15 seconds, which forces smart contracts to act on stale data. 

Moreover, many DeFi applications rely on in-house pricing oracles created by token reserves, non-decentralized pricing feeds or other ad hoc solutions. For example, Harvest Finance leaned on another DeFi project, Curve Finance, to price its token pools.

In cases like Harvest Finance, interoperability became a negative dependency. A flash loan worth $50 million deviated asset prices temporarily away from the market value, creating an arbitrage opportunity. A project that had a more robust pricing system wouldn’t have fallen prey to the exploit, the theory goes.

Are audits enough?

Another point developers are coming to grips with is that code audits alone don’t make a DeFi project safe.

Speaking with CoinDesk via Whatsapp, Quantstamp CEO Richard Ma said developers need to understand markets themselves, perhaps more so than the code they deploy to the Ethereum blockchain. Quantstamp has audited or consulted on multiple top DeFi projects such as Curve Finance, MakerDAO and SushiSwap, among others. 

“Understanding the products and the business logic is much more time-consuming and important than a straight-up code review,” Ma said. 

Indeed, Akropolis was audited twice by two separate firms, but still suffered a re-entrancy attack.

This sort of attack occurs when a smart contract’s backdoor is left ajar. The contract’s state – which records how many tokens the contract has, among other things – fails to update quickly enough when tokens are removed, allowing the attacker to move more coins out than okay. It’s not dissimilar to a lazy bank teller continuing to fork over funds from an overdrawn account.

Read more: Harvest Finance: $24M Attack Triggers $570M ‘Bank Run’ in Latest DeFi Exploit 

Combining audit redundancies with insurance is a step at least one major cryptocurrency investment firm is now urging.

“We are recommending our portfolio companies to get multiple audits from more than one provider,” Paul Veradittakit, partner at venture capital firm Pantera, said in an email. “We also think that projects and investors may want to buy insurance to protect themselves.”

It’s also notable that none of the top DeFi projects have suffered oracle attacks spurred by flash loans, dYdX founder Antonio Juliano told CoinDesk in a message. Many flash loans used in attacks have originated on his platform, which offers the product without a fee.

He said that “there’s a big divide between the well-engineered projects and others;” a divide being fleshed out in real time by flash loans.

“In the same way you wouldn’t blame Ethereum for an implementation detail of the chain being used for an attack, the way flash loans are being used in exploits is the fault of developers building insecure applications, not the flash loans themselves,” Juliano said.

Related Stories
CoinDesk

Bitcoin’s Rally Could Be Caused by a Supply Crunch in China

5 years 10 months ago

Bitcoin’s price surge may be driven as much by a drying up in supply as by an increase in demand. 

That’s because Chinese miners are struggling to sell their crypto in ways that would quickly get them much-needed cash in the face of a government crackdown on local exchanges. 

“The lack of supply has fed extremely well to the trendiness of this rally, without any of the large sell-downs typical of miner activity in the past,” Singapore-based trading firm QCP Capital noted in its Telegram channel. 

Related: Market Wrap: Bitcoin Hits $18.4K; $260M in Ether Options Expire in December

QCP’s interpretation of the rally is simpler and less exciting than some of the other popular explanations, which cite macro factors such as demand for a hedge against monetary and fiscal indiscipline, an impending rise in inflation across the developed world, and search for yield as primary reasons for the price surge.

Miners mostly operate using cash and offload their bitcoin holdings onto the market almost daily to fund their expenses, mainly electricity costs, which are to be paid in the local currency (yuan, in the case of those operating in China). That makes miners constant sellers, and their actions influence the market price. 

However, Chinese miners, who control over 70% of bitcoin’s hashrate or mining power, have been facing challenges liquidating their crypto holdings for cash because many are finding their bank accounts and cards frozen as a part of the Chinese government’s nationwide crackdown on telecommunications fraud and money laundering via cryptocurrency deals. 

Currently, 74% of the miners are facing difficulty liquidating their holdings to meet electricity expenses, a Chinese crypto watcher going by the name Wu Blockchain mentioned on his Weixin blog, according to QCP Capital. Thomas Heller, formerly global business director at the mining pool F2Pool and now chief operation officer of mining and media firm HASHR8, confirmed the Chinese miners’ predicament earlier this week, saying it’s currently a “challenge” for Chinese miners to convert bitcoin and tether into cash. 

Related: Vijay Boyapati’s Four Mental Models for Valuing Bitcoin

Read more: China’s Crypto Miners Struggle to Pay Power Bills as Regulators Clamp Down on OTC Desks

The industry has been suffering ever since the Chinese authorities began freezing bank accounts in June and the situation has worsened in the past couple of months.

“Mining pools were selling large chunks of bitcoin in early September through exchanges, but this was hastily halted as their last remaining fiat off-ramp avenues were impacted with the arrest of large exchange heads like Star Xu and other [over-the-counter] brokers,” QCP Capital said.

Miner selling pushed bitcoin lower, roughly from $12,000 to $10,000, according to QCP Capital. The supply, however, dried up after the cryptocurrency exchange OKEx’s accounts were frozen in October. 

That, coupled with increased institutional participation or large buying in the spot market, created a supply crunch, allowing an exaggerated bullish move. 

Bitcoin is currently trading at $17,700, representing an over 140% year-to-date gain. Prices are short $2,500 of the record high of nearly $20,000 reached in December 2017.

Rally overstretched?

Sharp price gains are often accompanied by a big jump in the funding rate, the mechanism used by exchanges offering perpetuals (futures with no expiry) to balance the market and guide the perpetuals price toward the spot price.  

The funding rate is positive, or longs pay shorts, when the perpetuals trade at a premium to the spot price, indicating stronger buying pressure. Alternatively, when perpetuals trade at a discount to the spot market, the funding rate is negative and shorts pay funding to longs. 

A very high funding rate is widely considered a sign of an overextended bull run and often paves the way for a price pullback. For instance, the funding rate surged from 0.008% to 0.078% in the first half of August as bitcoin rallied to multi-month highs above $12,450. The cryptocurrency deflated to $9,800 by the second week of September. 

This time, the funding rate has remained steady below 0.010%, meaning the cost of holding long positions is still considerably lower than in mid-August. Hence, a meaningful correction could continue to remain elusive, allowing further upside in the near term, possibly above record highs.

As per QCP Capital, the spot market imbalance driving the price has allowed the leverage funding market to remain stable throughout the recent bullish move. 

Related Stories
CoinDesk

OKEx Token Rallies on Rumors Founder Xu Released From Custody

5 years 10 months ago

OKB, the in-house token for leading crypto derivatives exchange OKEx, rallied more than 13% Wednesday on rumors that the firm’s founder, Mingxing “Star” Xu, had been released from police custody.

  • The exchange reported losing contact with Xu on Oct. 16 and was forced to suspend all trading account withdrawals, as CoinDesk reported at the time. Chinese media outlets reported Xu was in police custody but, speaking to CoinDesk, OKEx denied the investigation of Xu was related to money laundering.
  • Rumors started circulating on Twitter Wednesday (here, here and elsewhere) that Xu has been or will soon be released from police custody.
  • Reacting to these rumors, OKB surged more than 13% from its open of $4.80 at 0:00 UTC, changing hands around $5.48 at last check. The token has gained more than 17% this week.
  • The gains retrace part of the steep losses suffered after the token tumbled 30% following the mid-October suspension of withdrawals.
  • After more than a month of zero completed withdrawals, Xu’s rumored release could mean a return to normal for the exchange. OKB’s primary uses are for discounts on trading fees and collateral for margin trading at OKEx, so its utility (and to a large degree its value) depends on the exchange’s viability.
  • Repeated calls to OKEx attempting to confirm the rumor were not immediately returned.
Related Stories
CoinDesk
Checked
6 minutes 27 seconds ago
CoinDesk Crypto
Leader in cryptocurrency, Bitcoin, Ethereum, XRP, blockchain, DeFi, digital finance and Web 3.0 news with analysis, video and live price updates.
Subscribe to CoinDesk Crypto feed