Tous les quatre ans a lieu un événement que les mineurs et les adeptes de bitcoin attendent : le halving. Protocole inscrit dans le code du bitcoin, il détermine en grande partie le futur de la cryptomonnaie - et participe à la fluctuation des prix. Le prochain halving va avoir lieu dans quelques jours.

À l'heure où le bitcoin atteint de nouveaux sommets, certains se mettent à collectionner des bitcoins « rares ». À New-York, la prestigieuse maison de vente aux enchères Sotheby’s vend même des centimes de bitcoins à plus de 100 000 dollars la pièce. Pourquoi certains bitcoins sont-ils plus rares que d’autres ?

mrspoonsi shares a report from the BBC: A former takeaway worker found with Bitcoin worth more than $2.5 billion has been convicted at Southwark Crown Court of a crime linked to money laundering. Jian Wen, 42, from Hendon in north London, was involved in converting the currency into assets including multi-million-pound houses and jewelry. On Monday she was convicted of entering into or becoming concerned in a money laundering arrangement. The Met said the seizure is the largest of its kind in the UK. Although Wen was living in a flat above a Chinese restaurant in Leeds when she became involved in the criminal activity, her new lifestyle saw her move into a six-bedroom house in north London in 2017 which was rented for more than $21,000 per month. She posed as an employee of an international jewelry business and moved her son to the UK to attend private school, the Crown Prosecution Service (CPS) said. That same year, Wen tried to buy a string of expensive houses in London, but struggled to pass money-laundering checks and her claims she had earned millions legitimately mining Bitcoin were not believed. She later travelled abroad, buying jewelry worth tens of thousands of pounds in Zurich, and purchasing properties in Dubai in 2019. Another suspect is thought to be behind the fraud but they remain at large. The Met said it carried out a large scale investigation as part of the case - searching several addresses, reviewing 48 electronic devices, and examining thousands of digital files including many which were translated from Mandarin. The CPS has obtained a freezing order from the High Court, while it carries out a civil recovery investigation that could lead to the forfeiture of the Bitcoin. The value of the Bitcoin was worth around $2.5 billion at the time of initial estimates -- but due to the fluctuation in the currency's value, it has since increased to around $4.3 billion.

Read more of this story at Slashdot.

Le prochain halving du bitcoin doit avoir lieu en avril 2024. Mais, selon une étude de Coinbase, cette fois-ci le halving pourrait avoir des effets limités sur le prix du bitcoin. Il vient déjà de connaître une forte hausse et reste pénalisé par des taux directeurs très hauts.

An anonymous reader shares a report: About 6,000 older Bitcoin mining machines in the US will soon be idled and sent to a warehouse in Colorado Springs where they'll be refreshed and resold to buyers overseas looking to profit from mining in lower-cost environs. Wholesaler SunnySide Digital operates the 35,000 square-foot facility taking in the equipment from a mining client. The outdated machines are among several hundred-thousand it expects to receive and refurbish around a major quadrennial update in the Bitcoin blockchain. Known as the halving, the late April event will slash the reward that's the main revenue stream for miners, who will try to lessen the impact by upgrading to the latest and most efficient technology. With electricity the biggest expense, mining companies including publicly traded giants Marathon Digital Holdings and Riot Platforms need to lower usage costs to maintain a positive margin. Their older computers may still bring a profit, just not likely in the US. Some 600,000 S19 series computers, which account for a majority of machines currently in use, are moving out of the US mostly to Africa and South America, according to an estimate by Ethan Vera, chief operating officer at crypto-mining services and logistics provider Luxor Technology in Seattle. In Bitcoin mining, specialized machines are used to validate transactions on the blockchain and earn operators a fixed token reward. Anonymous Bitcoin creator Satoshi Nakamoto baked in the once-every-four-years halving to maintain the hard cap of 21 million tokens. Next month's event is the fourth since 2012 and the reward will drop to 3.125 Bitcoin from 6.25 now.

Read more of this story at Slashdot.

The FTX bankruptcy estate has raised $884 million by selling the majority of its Anthropic shares to two dozen institutional investors. "The sale of the Anthropic shares is a big win for the FTX estate, which pledged in January to pay back the defunct exchange's customers 100% of the value of their holdings at the time of the exchange's collapse," reports CoinDesk. "FTX's FTT token climbed 10% on the news." From the report: According to Friday court filings, the top buyer is ATIC Third International Investment Company, a tech investment company wholly owned by the government of Abu Dhabi's sovereign wealth fund, Mubadala. ATIC has agreed to purchase 16,664,167 shares of Anthropic from FTX for $500 million. Other buyers include Jane Street Global Trading -- an affiliate of the erstwhile employer of former FTX CEO Sam Bankman-Fried -- "certain funds" tied to Fidelity Investments and The Ford Foundation.

Read more of this story at Slashdot.

A top executive from the crypto exchange Binance has escaped custody in Nigeria after being arrested for allegedly destabilizing the country's national currency. The Associated Press reports: Nadeem Anjarwalla, the regional manager for Binance in Africa, "fled Nigeria using a smuggled passport," the office of Nigeria's National Security Adviser said in a statement, calling for "whatever information that can assist law enforcement agencies to apprehend the suspect." Anjarwalla, who holds dual British and Kenyan citizenship, had been detained in Nigeria along with another colleague since Feb. 26 when they arrived in the country following a crackdown on the crypto platform. Tigran Gambaryan, the colleague who is an American citizen, remains in captivity. Nigeria is Africa's largest crypto economy in terms of trade volume with many citizens using crypto to hedge their finances against surging inflation and the declining local currency. Binance stopped all trading with the Nigerian naira currency on its platform in early March after authorities accused it of being used for money laundering and terrorism financing -- without providing evidence publicly. It was not clear how Anjarwalla fled custody. The Abuja-based Premium Times newspaper, which broke the news of his escape, reported that he fled from a guest house in the capital city after guards led him to a nearby mosque for prayers. "The personnel responsible for the custody of the suspect have been arrested, and a thorough investigation is ongoing to unravel the circumstances that led to his escape from lawful detention," Zakari Mijinyawa, spokesman for the office of Nigeria's National Security Adviser said in a statement.

Read more of this story at Slashdot.

An anonymous reader quotes a report from Reuters: An environmental community group on Tuesday sued Stronghold Digital Mining claiming the company's bitcoin mine in northeastern Pennsylvania that burns waste coal and old tires for energy is polluting nearby communities with dangerous chemicals. The lawsuit by Save Carbon County filed in state court in Philadelphia, also names Pennsylvania as a defendant. The group, a nonprofit whose members live near the bitcoin mine, is seeking compensatory and punitive damages from the company, and an order directing the state to stop allowing the pollution to continue. The group said Stronghold has created a public and private nuisance by releasing mercury into waterways and spewing harmful chemicals like sulfur dioxide into the air from an aging power plant it bought to power its energy-thirsty operations. The state has issued permits allowing the pollution and subsidized the crypto-mine through tax incentives despite having an affirmative duty in the state constitution to protect the environment for its citizens, according to the lawsuit. A Stronghold spokesperson said in a statement that its operations actually clean up land and water in the area by using waste coal left behind by historic coal production in the region. "Stronghold's facilities have cleaned up millions of tons of waste coal and reclaimed over 1,050 acres of once-blighted land, now sports fields, parks, and fishing spots for local communities," the spokesperson said.

Read more of this story at Slashdot.

Two Texas-based bitcoin miners have turned to the foothills of the Andes mountains in Argentina to mine bitcoin using flared natural gas. CNBC reports: Brent Whitehead and Matt Lohstroh, both graduates of Texas A&M University, have been mining bitcoin on the oil fields of East Texas since 2019. That's when they founded Giga Energy with the goal of taking flared natural gas and turning it into electricity to run bitcoin mines, which are notoriously power-thirsty. On Tuesday, Giga announced its first foray into Argentina, following expansion across the U.S. and into Shanghai. The company is partnering with Phoenix Global Resources, an oil and gas company with operations in Mendoza, and with IT services company Exa Tech to launch a two megawatt bitcoin mine on top of Vaca Muerta. Giga's system involves placing a shipping container full of thousands of bitcoin miners on an oil well, then diverting the natural gas into generators, which convert the gas into electricity that's used to power the miners. The process reduces CO2-equivalent emissions by about 63% compared to continued flaring -- or burning -- of unused gas, according to research from Denver-based Crusoe Energy Systems. It also turns wasted energy into a valuable asset for oil producers. On the small pilot site in Argentina, Exa Tech is handling operations on the ground, Phoenix Global is providing the gas and Giga is supplying the equipment. [...] Lohstroh told CNBC that Giga has generated over $10 million in revenue so far this quarter. It's not the only miner that sees opportunity in Argentina, which ranks 12th on the list of the top global emitters of methane, according to World Bank data. Giga's mine is intentionally small to start and isn't intended to be profitable yet. The company first wants to make sure it can successfully import all the necessary equipment before scaling the operation. The mine has been running a test since December, and Lohstroh estimates the site has mined in the range of $200,000 to $250,000 worth of bitcoin. Giga projects the mine is set to reduce CO2 emissions by approximately 30,000 tons per year at the upstream facility. The site is also designed to sell any excess power to the Argentina grid as a way to both generate revenue and curb operational redundancies.

Read more of this story at Slashdot.

According to Bloomberg, the U.S. and U.K. are investigating more than $20 billion worth of USDT transactions that have passed through Garantex, a Russia-based crypto exchange. Milk Road reports: If confirmed, the $20 billion in transactions would represent one of the most significant breaches of the sanctions imposed on Russia since the conflict began. However, the sources cautioned that the inquiries are ongoing and that it is too early to draw conclusions given the complexity of crypto transactions. They also noted that there was no immediate suggestion of wrongdoing by Tether. Key points: - The transactions under scrutiny were conducted using Tether (USDT). - The US and UK sanctioned Garantex on suspicion of facilitating financial crimes and illicit transactions in Russia. - The $20 billion USDT transactions would represent one of the biggest breaches of sanctions imposed on Russia since the start of the war. - Tether froze assets of entities on the U.S. sanctions list.

Read more of this story at Slashdot.

Les modèles prédictifs d’une nouvelle étude scientifique sont parvenus à dater ce qui serait la « fin du bitcoin », déjà tant de fois annoncée par erreur. Plongée dans ces statistiques diseuses de mauvaise aventure.

Bitcoin fell more than 4.76% on Tuesday to $66,134 amid rising Treasury yields and strength in the U.S. dollar. CNBC reports: On Monday morning, it was trading at about $70,000 before data came out showing growth in the manufacturing sector for the first time since September 2022 and investor bets on June rate cuts began to cool. Bitcoin is now off its all-time high, reached on March 14, by about 11%. Ether went down with it, losing 5.6% to trade at $3,240.27. Meanwhile, the 10-year U.S. Treasury yield hit its highest level of the year and the dollar, which has an inverse relationship with bitcoin, hit a five-month high. Bitcoin's move may have been exacerbated by a large bitcoin holder, or "whale," who transferred more than 4,000 bitcoin to the Bitfinex exchange late Monday night. Data from CryptoQuant shows a spike in that exchange's reserves -- which typically signals a boost in selling activity -- that coincides with the sudden drop in bitcoin price late Monday night. Stocks tied to the performance of bitcoin were dragged down but traded off their lows to end the day.

Read more of this story at Slashdot.

Terraform Labs and its founder Do Kwon have been found liable on civil fraud charges on Friday by a jury in Manhattan. The jury agreed with the SEC that the two misled investors before their stablecoin's 2022 collapse shocked crypto markets around the world. Reuters reports: The SEC accused the company and Kwon of misleading investors in 2021 about the stability of TerraUSD, a stablecoin designed to maintain a value of $1. The regulator also accused them of falsely claiming Terraform's blockchain was used in a popular Korean mobile payment app. SEC attorney Laura Meehan said during closing arguments that the platform's success story was "built on lies." "If you swing big and you miss, and you don't tell people that you came up short, that is fraud," Meehan said. Louis Pellegrino, an attorney for Terraform, told the jury on Friday the SEC's case relied on statements taken out of context and that Terraform and Kwon had been truthful about their products and how they worked, even when they failed. "Terraform is still out there, trying to rebuild and make purchasers whole," he said. The regulator is seeking civil financial penalties and orders barring Kwon and Terraform from the securities industry. Kwon, who was arrested in Montenegro in March 2023, did not attend the trial, which began March 25. Both the U.S. and South Korea, where Kwon is a citizen, have sought his extradition on criminal charges.

Read more of this story at Slashdot.

Dollar, euro ou yen : toutes ces monnaies ont leur émoji. Alors pourquoi pas le bitcoin ? À quelques jours du halving, des activistes ont lancé une pétition en ligne pour donner à la cryptomonnaie emblématique son émoji. Pourrons-nous bientôt inonder nos messages d'émoticônes BTC ? La question est moins anodine qu'on ne le pense.

An anonymous reader quotes a report from Ars Technica: Federal prosecutors indicted a Nebraska man on charges he perpetrated a cryptojacking scheme that defrauded two cloud providers -- one based in Seattle and the other in Redmond, Washington -- out of $3.5 million. The indictment, filed in US District Court for the Eastern District of New York and unsealed on Monday, charges Charles O. Parks III -- 45 of Omaha, Nebraska -- with wire fraud, money laundering, and engaging in unlawful monetary transactions in connection with the scheme. Parks has yet to enter a plea and is scheduled to make an initial appearance in federal court in Omaha on Tuesday. Parks was arrested last Friday. Prosecutors allege that Parks defrauded "two well-known providers of cloud computing services" of more than $3.5 million in computing resources to mine cryptocurrency. The indictment says the activity was in furtherance of a cryptojacking scheme, a term for crimes that generate digital coin through the acquisition of computing resources and electricity of others through fraud, hacking, or other illegal means. Details laid out in the indictment underscore the failed economics involved in the mining of most cryptocurrencies. The $3.5 million of computing resources yielded roughly $1 million worth of cryptocurrency. In the process, massive amounts of energy were consumed. [...] Prosecutors didn't say precisely how Parks was able to trick the providers into giving him elevated services, deferring unpaid payments, or failing to discover the allegedly fraudulent behavior. They also didn't identify either of the cloud providers by name. Based on the details, however, they are almost certainly Amazon Web Services and Microsoft Azure. If convicted on all charges, Parks faces as much as 30 years in prison.

Read more of this story at Slashdot.

Le halving est un phénomène très attendu par l'industrie des crypto-monnaies, car il est normalement suivi par une forte période d'augmentation des prix. Cette fois-ci, les mineurs sont également à l'affût de bitcoins très particuliers.

Le 3 avril 2024, le Bitcoin Cash, une copie dérivée du bitcoin, a fait son halving en avant-première. Deux semaines avant le BTC, cette cryptomonnaie a divisé son émission de jetons numériques par deux. Elle nous donne un aperçu de ce qui attend le véritable bitcoin le 20 avril.

Le halving approche à grands pas. Les experts sont divisés sur ce qu'il va advenir du bitcoin après cet évènement. Le prix de la crypto-monnaie va-t-il exploser, stagner ou bien chuter ?

Alors que le halving du bitcoin approche, de nouvelles études se montrent pessimiste quant à son influence sur le prix de la crypto-monnaie. Certains estiment que le halving ne créera pas d'augmentation, d'autres pensent qu'il va les faire chuter.