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Bitcoin [BTC]: There are currently five trusted PGP keys, says Mastering ₿itcoin author

Bitcoin [BTC]: There are currently five trusted PGP keys, says Mastering ₿itcoin author

During a Q&A session, Andreas M Antonopoulos, the author of Mastering ₿itcoin, spoke about the maintainers of ₿itcoin Core and whether it is possible to know their privileges at any given point in time.

Andreas started by elucidating on the term ‘maintainer’ and the difference between contributors, committers, and maintainers in an open-source project, which is partly hosted on Github. According to him, contributors are those individuals who make pull-requests and actively contribute to the code.

Pull requests refer to the state wherein an individual publicizes the changes they have pushed to a GitHub repository. When this is done, people interested in the project can review the changes proposed, discuss the proposal with the members of the community, and also push follow-up commits.

“All changes to ₿itcoin Core happen through pull-requests. Nobody commits [new changes] directly to a [release] branch without a full review of their pull request. All changes go through a pull-request process.”

Whereas, maintainers are those people who are responsible for gathering all the change request, which has been approved by the “broad social consensus of the development community”.

“Changes must have broad consensus and acceptability to be included into the next release. [after discussion about] how to sequence them, when to package them, and what each release should include. Even [those] decisions are heavily influenced by the collaborative communication between contributors, who are commenting on the pull-requests and [fostering] open discussions about [development timelines].”

He went on to say that the main role of a maintainer is to schedule the release and manage them, thereby ensuring that the right changes are included, “putting them through quality assurance testing, and then finally producing a release as a bundle of changes with a specific version number”.

“That [comes with] release notes about what changed, who changed it, who contributed, what effects it has, why the changes were [made], and any upgrade or migration steps that are necessary. Maintainers collect all of that documentation.”

The author stated that the lead maintainer at present for ₿itcoin Core is Wladimir van der Laan. He further added that the number of contributors ranges from 30 people, who are contributing to the project on a regular basis, to 500 people, who are contributing to a certain extent.

Andreas also spoke about the people in ₿itcoin Core with commit access. This refers to those people with write access to the source code, without going through a third person. Here, he stated that the people in ₿itcoin Core with commit access to the repository, do not use that commit access. He said:

“If they do have it, they don’t use it. All commits [are done] by the project maintainers, [who manage releases]. It is a very different perspective [from most projects].”

This was followed by the author stating that currently there are five trusted PGP keys. These keys belong to the lead maintainer, Wladimir van der Laan, Pieter Wuille, Jonas Schnelli, Marco Falke, and Samuel Dobson. These people can sign commits into the repository, however, they are usually not the ones making the commits, he added.

“Wladimir simply reflects, and does administrative work for, decisions which have already been made… by the community. In fact, he exercises very little authority over what goes into a [bitcoin Core] release. He reflects decisions that have already been made in a very collaborative and open manner, through discussions on the pull-requests and project notes [around] the code.”

The post Bitcoin [BTC]: There are currently five trusted PGP keys, says Mastering ₿itcoin author appeared first on AMBCrypto.

Published at Tue, 29 Jan 2019 14:03:47 +0000

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This Bitcoin Developer Is About to Take on the Mining Hardware Industry

DragonMint

BtcDrak, the most active pseudonymous bitcoin Core contributor to date, is making a move into the mining hardware industry. The developer, who besides having contributed to the bitcoin Core repository also maintains bitcoincore.org and the bitcoin Core Community Slack, told bitcoin Magazine he helped set up ASIC chip manufacturing company Halong Mining over the past year, and produced an initial batch of mining hardware, with plans to ship to consumers in early 2018.

“We started a mining project with the aim to bring much needed competition to the market,” BtcDrak said. “We want to ‘make SHA256 great again.’”

The Miners

As listed on the company website, Halong Mining is launching a product line that consists of one machine for now: the DragonMint 16T. The miner — its name references the Dragons’ Den, an (in)famous private chat channel on the bitcoin Core Community Slack — is said to be equipped with newly designed chips and can produce a total of 16 terahashes per second. Importantly, BtcDrak claims that the machines are about 30 percent more energy efficient than the most efficient ASIC miner on the market right now, Bitmain’s AntMiner S9.

“The DragonMint will be the most advanced miner to date,” he said.

The main bottleneck to entering the ASIC market is typically capital: developing specialized chips from scratch is expensive. While BtcDrak preferred not to disclose much information about Halong Mining for now, he did note that the machines have been produced by a team with “serious expertise.”

According to the developer, Halong Mining has invested $30 million in research and development so far, with over 100 people involved, including chip designers, electronics hardware specialists and software designers.

“Research and development is not cheap, and we need a lot of diverse skills,” BtcDrak explained.

Halong Mining has now produced a prototype batch of DragonMint machines for testing and fine-tuning, BtcDrak said, but these will not be sold to the public due to risk of reverse engineering. He emphasized that the machines are working, however, adding:

“Other companies that want to enter the ASIC mining industry develop everything in simulations, and then the first presale batch tries to pay for small production. But the NRE [non-recurring engineering] and making wafers is fraught with difficulty; the first run is not easy to do well.”

Halong Mining published a video of a DragonMint on YouTube today. BtcDrak thinks the first mass-produced run of DragonMint miners will happen within about four months and begin to ship in March of 2018.

Apart from the DragonMint machines, he says Halong Mining will also be selling mining chips separately, in bulk.

The Competition

With the introduction of DragonMint miners, Halong Mining should offer an alternative for Bitmain’s mining hardware, which has dominated the market for the past few years. An estimated 70 percent or more of the hash power on the network today is produced by Bitmain machines, and around half of all hash power is pointed to mining pools that are either owned by or closely affiliated with Bitmain, such as AntPool, BTC.com, ConnectBTC and ViaBTC.

“One manufacturer as a monopoly is not good for bitcoin,” BtcDrak said. “Centralization in mining is a problem regardless of how benevolent you are. If there is a center, then governments and criminals can attack it. Decentralization protects the entire system and all its participants. So I wanted to bring competition.”

Bitmain in particular has also not made itself popular within segments of the bitcoin community over the past years. The Chinese ASIC manufacturer was at the center of the AsicBoost and Antbleed controversies. And perhaps more importantly, some speculate that the company exerted its influence over the mining ecosystem by allowing or limiting hardware sales based on how hash power from the machines was used. Bitmain has always denied this is the case, however.

Halong Mining wants to distribute ASIC miners “far and wide to help decentralize mining,” BtcDrak said, adding that the company is considering open sourcing its board designs and software. This would help new manufacturers get a foothold in the industry, building on the research already done by Halong Mining over the past year.

BtcDrak concluded:

“There is a lot at stake here. A lot of time and money has been invested … and we have a huge opportunity to bring more diversity to bitcoin mining, and in turn help secure the network more.”

This article was slightly updated, in part to better reflect the scope (and limits) of our knowledge about Halong Mining and the DragonMint machines.

The post This Bitcoin Developer Is About to Take on the Mining Hardware Industry appeared first on Bitcoin Magazine.