Aaron van Wirdum

OpenTimestamps, a project led by Bitcoin Core developer Peter Todd, just made sure the Internet Archive cannot be forged.Well, sort of. In a blog post published last week, the developer and consultant explained how he used his ...

This is a re-write of A Bitcoin Beginner’s Guide to Surviving a Coin-Split, specifically addressing issues associated with the upcoming BIP 148 UASF. (Update: And the BCC launch.)July 26th update: With BIP91 activated, it seems ...

Update, May 30th: While the use and circulation of virtual currencies is banned in Bolivia, it is now unclear whether that's what the suspects are really charged with. Reports as well as local sources suggest that they may instead be ...

Qtum is an up-and-coming smart contract platform set to launch in September of this year. Sometimes ambitiously referring to itself as “China’s Ethereum,” the project recently raised $15 million in three days through a successful ...

Spearheaded by Barry Silbert’s Digital Currency Group (DCG), this week over 50 companies signed and published a “Bitcoin Scaling Agreement” on Medium. The agreement intends to put an end to Bitcoin’s long-lasting scaling debate. Whether ...

Segregated Witness (SegWit), the Bitcoin protocol upgrade proposed by the Bitcoin Core development team, was originally designed to activate via the Bitcoin Improvement Protocol 9 (BIP 9) standard, a hash-power signalling mechanism. ...

The AsicBoost controversy has added another chapter to its book.Yesterday, law firm Getech Law published an open letter, which was subsequently confirmed to be legitimate by Timo Hanke, the initial submitter of the AsicBoost patent ...

Bitcoin got caught in another media storm this week, though only in a supporting role this time around. The ongoing ransomware attack by the name of “WannaCry,” sometimes also referred to as “WannaCrypt0r,” “Wcry,” “WanaCry,” ...

It’s official. Litecoin, one of the oldest and biggest altcoins by market cap, deployed Segregated Witness (SegWit) today. The protocol upgrade that was originally developed for Bitcoin and proposed by the Bitcoin Core development team ...

Major Bitcoin mining hardware producer Bitmain can remotely shut down almost all active Antminer machines. Dubbed the “Antbleed” backdoor, abuse of the vulnerability could probably knock half of all hash power on the Bitcoin network ...

The Bitcoin Core project, launched by Satoshi Nakamoto eight years ago and today led by Wladimir van der Laan, aims to release a new major release of the software about once every six months. Such a release (0.12.0, 0.13.0, 0.14.0…) ...

Through a splash in the media, Purse and its in-house-built alternative Bitcoin implementation Bcoin recently presented their scaling proposal, dubbed “To the Moon.” Where Bitcoin XT, Bitcoin Classic and Bitcoin Unlimited all attempt to ...

As first revealed by Bitcoin Core developer and Blockstream Co-Founder and CTO Gregory Maxwell, and subsequently confirmed by Bitmain through a press release, the major Chinese mining hardware manufacturer has included the AsicBoost ...

Through a Bitcoin Improvement Proposal (BIP) draft sent to the Bitcoin development mailing list last week, long-time Bitcoin Core developer and Blockstream co-founder and CTO Gregory Maxwell revealed that a Bitcoin mining hardware ...

On a typical blockchain, all participants check all transactions. This level of transparency can offer much security, as public verification ensures no single participant can cheat any of the others. But it is not great for privacy.For ...

There is a chance Bitcoin will experience a coin-split soon. If a majority of miners (by hash power) switch to Bitcoin Unlimited and decide to mine blocks bigger than one megabyte, while at least some users stick to the current Bitcoin ...

Bitmain, the major Chinese ASIC producer, has launched a third mining pool: ConnectBTC opened to the public today. AntPool and BTC.com already belong to the Bitmain group of mining pools. This new pool is part of Bitmain’s Israeli ...

Although it is hard to say how big the chance actually is, Bitcoin Unlimited miners may soon start mining bigger blocks. If they do, they will diverge from the current Bitcoin protocol to split off to a new blockchain. This could also ...

Bitcoin could soon split in two. If Bitcoin Unlimited miners start mining blocks exceeding one megabyte, these would be rejected by full Bitcoin nodes like Bitcoin Core and Bitcoin Knots. This could result in two different and ...

There is a chance Bitcoin will experience a coin-split soon. If a majority of miners (by hash power) switch to Bitcoin Unlimited and decide to mine blocks bigger than one megabyte, while at least some users stick to the current Bitcoin ...

Since most altcoins are based on Bitcoin’s codebase, upgrades to Bitcoin are often relatively easy to implement in altcoins. Indeed, as Segregated Witness (SegWit) is slow to activate on Bitcoin, several altcoins are taking a stab at ...