Judge Considers Allowing Bitcoin Mining Company Butterfly Labs (BFL) to Reopen

According to BizJournal coverage of the Butterfly Labs (BFL) FTC case, federal Judge Mark Wimes may be considering allowing the tainted Bitcoin mining company to reopen its doors in an attempt to make money to pay back customers from around the world. Butterfly Labs has been notorious in the Bitcoin mining space for failing to […]

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The Ever-Changing Atmosphere of Bitcoin Mining 2.0

The Ever-Changing Atmosphere of Bitcoin Mining 2.0

Boost VC Is Going Full Bitcoin


We are going full Bitcoin!

After spending time at the Inside Bitcoin seminars in both Hong Kong and also Melbourne, we realised that out of all the excellent firms existing, a large section originated from makers of mining hardware and also the entire Bitcoin Mining room. The large number of manufacturers and teams of Bitcoin miners made it apparent that this component of the Bitcoin neighborhood is in an Arms Race. It was very appealing to talk with these business as we at Coinarch are taking advantage of a room that is not as saturated as that of Mining.

Many surprisingly, the business we spoke to forward market their rigs for months in advance as well as totally admit that their aged rigs would be enormously obsoleted hereafter interval. This hanging around duration in anticipation for excellent quality tools makes the entire Bitcoin Mining procedure appear a little bit tough without the appropriate sources as well as encounter.

One firm that struck our interest was that of Genesis Mining, a German cloud mining service provider who charges a fixed yearly rate to rent its hash power. Though the idea is not foreign, Genesis does an incredible work of making their service very easy for any individual to make use of, from newbie to expert. From an option of 9 altcoins, the user earns each day based after the particular mining result on the address they chose. Below is a screenshot of their interface; we were so pleased that we registered right away!

In addition to Genesis, we were very intrigued by the Cloud Broker design, which gives a web link between people that are interested in acquiring cloud mining power and also the people marketing it. For a person trying to choose in between the huge quantities of alternatives around, this design is an interesting concept to link the right people with each other.

Among the essential takeaways from our experiences at Hong Kong and Melbourne was the tremendous quantity of Mining companies and the quality at which their work is done. Moving on, this has to mean that their devices as well as solution will certainly begin to reduce but not without a correct balance in the mining difficulty also. Even though we at Coinarch are not included with Bitcoin mining, this encounter has opened our eyes as well as informed us on the future of Bitcoin mining as well as the effect it carries Coinarch as well as the whole Bitcoin neighborhood.

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Overstock CEO Patrick Byrne:


Lamenting on Missed opportunities in Innovative Tech

Overstock CEO Patrick Byrne: ‘That’s Not Going to Happen with Bitcoin’

by Kenny Spotz 

In a Quarter 3 conference call with investors, CEO of Overstock Patrick Byrne expanded on his plans to team up with Counterparty to create a decentralized stock exchange called Medici. Once developed, Byrne says Medici will be a “tollbooth” between the worlds of traditional finance and crypto finance.

Plans for this project go back to Byrne’s keynote speech at Bitcoin 2014 in Amsterdam, where he first mentioned the possibility of using the Blockchain to replace traditional methods of issuing securities. In the conference call, it was revealed that that speech was a strategic move to attract interested parties that could help Overstock achieve this goal. Following the speech, “thirteen different groups around the world” offered their services, with Counterparty being chosen after a vetting process.

Byrne said that Counterparty was selected for multiple reasons:

“It’s an open-source movement that stays true to the bitcoin philosophy. It is transparent. It is built within Bitcoin rather than being a proprietary alternative to bitcoin. There’s just all these aspects of it that made me think these were the right fellas to go with.”

The decision to develop Medici should come as no surprise to those who have follow Byrne’s career. As the man behind Deep Capture, he has long been railing against corruption on Wall Street and what he believes have been targeted attacks against his company’s stock using a strategy called naked short-selling. The team from Counterparty involved with Medici’s development told the Wall Street Journal in a conference call that the system’s design will prevent that specific tactic.

Unfortunately for those hoping to use Medici, there is no planned date for when it will be up and running. During the conference call Byrne said that “in the absence of there being a government,” the system could be up and running in three to four months, but because of the need for regulatory approval there is no way to predict the true timetable.

Mark Griffin, General Counsel for Overstock, chimed in to say that “initial discussions” with agencies have yet to take place and that, since this is a “paradigm shift” for regulatory agencies, it is hard to predict what the framework for implementation will look like. One thing is certain, current regulations necessitate that Medici feature a centralized clearing house. Merging this requirement with the project’s decentralized nature will be a key challenge.

CEO of Overstock Patrick Byrne

During the conference call, the man who once told Wired that Bitcoin is the solution to our oncoming zombie problem also dropped some insight into why he is so passionate about capitalizing on Blockchain technology (beyond it’s ability to fight corruption and the undead).

It seems Byrne has regrets about missing out on previous trends:

“We were early in the game in mobile, so early that around 2002 nobody adopted and we eventually discontinued it. We had a great social media platform very early on. Again, the same story. So I kick myself about some — about having stood just a foot away from some of the great technological innovations of the last 15 years and not really seized them correctly. That’s not going to happen here. We, through some fluke, have ended up right in the crossroads of this emerging technology.”

While he hopes that Overstock is hopping on Bitcoin at the right time, there have been signs that they could be too far ahead of the curve once again. Commenting on international Bitcoin purchases, which were opened up about a month ago, Byrne commented that consumer response has been “quite a bit slower than (the) domestic program when it launched. I had expected something much bigger, but the international purchases — I mean, they are happening, but they’re — it’s de minimis.”

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Vitalik Buterin Wins 2014 World Technology Award, Denounces Bitcoin Maximalism

Vitalik Buterin won the 2014 World Technology Award for the category “IT Software,” beating Facebook founder Mark Zuckerberg. The Award recognizes Buterin’s leading role in the design and development of Bitcoin 2.0 platform Ethereum. Earlier this year Buterin, featured in The Rise and Rise of Bitcoin documentary, won the prestigious Thiel Fellowship for developing Ethereum, […]

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How Bitcoin Companies Keep Your Funds Safe

How Bitcoin Companies Keep Your Funds Safe

How bitcoin companies keep your funds safe

When you store your bitcoins on an exchange, a gambling site, or in an investment site, you’re placing a lot of trust in the company.

Personal wallet security with a relatively small amount of coins is one thing, but these sites store many more bitcoins than the average user, and are therefore prime targets for attack. So how do they protect your money?

Some, like the gambling site Seals With Clubs, use their own proprietary wallet technology, while others work with third-party services.

There are a variety of techniques and tools that companies can use to try and keep customers’ cherished coins safe.

Cold storage

Cold storage is an obvious candidate, and this is what wallet provider and merchant payment gateway Coinbase does.

The company, which claims to store more bitcoin than anyone in the world, holds 97% of it offline, on a combination of USB keys and paper backups. The private keys on the USB drives are encrypted and stored in safe deposit boxes around the world.

Exchanges, too, rely on cold storage for their security. “All of the funds held on Coinsetter are currently in cold storage,” said the New York-based exchange’s founder, Jaron Lukasiewicz. “We have multiple tiers of cold storage, depending on a number of factors.”

A firm can manage its own cold storage, or it can get someone else to do it. Coinsetter stores around 50% of its funds in Xapo‘s bitcoin vault.

Xapo charges around 0.12% of the amount stored to look after enterprise bitcoins in its bitcoin vault, which consists of offline servers held in three locations in Asia, South America and the US.

The geographic distribution isn’t just for physical site redundancy. It focuses on governments as an attack vector too. If the authorities in one jurisdiction try to seize bitcoins in a vault, then there would be two other locations still with their bitcoins intact.

Insuring against loss

Now, some cold storage services are complementing the technical advances in enterprise bitcoin storage with a financial one: cyber-insurance.

“We were the first bitcoin company to obtain a cyber-crime insurance policy,” said Coinbase co-founder and CEO Brian Armstrong. “This covers the bitcoin we store live on servers, and covers things like hacking, internal theft and accidental loss due to software bugs.”

Xapo’s vault is insured by Meridian Insurance.

Another wallet supporting cold storage is Armory, an enterprise-class storage wallet developed by Alan Reiner.

John Velissarios, who recently joined Armory as chief information security officer (CISO), explained that the wallet has a special cold storage version designed not to connect to the blockchain, meaning that it doesn’t publish transactions.

“You can have a cold storage machine where it’s completely disconnected, with no connectivity to the outside world. You use that to release funds from your wallet,” he said.

To take advantage of cold storage, enterprise users can prepare their bitcoin transaction on an Internet-connected computer, and then copy it to a USB drive and transfer the transaction to the offline cold storage computer, where they are signed.

“You then copy it back onto the online computer and publish it,” Velissarios continued.

Hardware security modules

Not everyone is enamoured by cold storage, however. Getting the funds out of that storage into a hot wallet can be time consuming, point out the method’s critics.

“People in a business need controlled access to funds,” said Rodolfo Novak, co-founder ofCoinKite. “Every time you do cold storage you are mandatorily adding a human to the mix, so there is capacity for human error.”

In February, CoinKite launched a service storing private keys securely in hardware security modules (HSMs), which are not directly connected to the Internet, but instead function through a proxy that makes requests to the system. This provides what Novak calls ‘warm’ storage – securely-held keys that are accessible via an API.

“The HSM is walled out of the standard Internet and it doesn’t ever expose its keys. So you can’t really practically get hacked,” he said.

The HSM, which CoinKite built itself, has no web server. All it can do is support API requests from CoinKite’s own web server. The module has to electronically sign that server before it starts up, which according to CoinKite co-founder Peter Gray means that there can be no malicious processes running on the server.

Users access the system using their CoinKite login credentials, which the company encrypts using a hashing algorithm, and can further protect themselves from being compromised using two factor authentication (2FA), via Google Authenticator, SMS, or even paper-based authentication.

When the user is authenticated, they can then access their cold storage via an API, which can be set to follow certain constraints, such as only allowing access from certain IP addresses, or limiting withdrawals to a set amount over a specified time period.

Multisignature storage

Multi-signature (‘multisig’) storage is one of the biggest developments in enterprise bitcoin security to date.

BitGo, which CEO and co-founder Will O’Brien says focuses on solutions for enterprises and institutions, eschews cold storage altogether in favour of multisig.

O’Brien said:

“Single-key cold storage is a dangerous, outdated practice. As an industry we need to end the cold storage ice age and adopt multisig, where you can make any number of keys ‘cold’ and have much stronger protections.”

Standardised a couple of years ago as part of BIP 16 (it was previously a non-standard feature in the protocol), multisig enables a sender to require more than one signature to confirm a transaction in what is known as ‘m of n‘ signing.

In an m of n multisig transaction, there are a total of n available private keys to sign a transaction, and the wallet can be set up to require m of those keys to sign the transaction for the transaction to be executed.

The idea is to stop a single person from being able to compromise a wallet, by requiring another known party to co-sign that transaction.

BitGo, which claimed to be the first provider of multisig wallet functionality, features ‘2 of 3′ signature confirmation, meaning that two private keys must be used to sign a transaction from a total of three available.

One of the signers in the scenario is the private local wallet, and one of them is the bitcoin private key. The third key is a backup key held on the Bitgo server.

Armory also announced fully decentralised mutisig capability in July. The firm offers multisig combinations up to m of 7, via independently-managed Armory wallets, without the use of a centralised site.

“Banks typically have 2 of 3, or 3 of 6, but they generally won’t go past 7,” said Velissarios, formerly a senior principal in Accenture’s security consulting arm, with similar experience at PricewaterhouseCoopers. “That’s why the enterprise space is very well suited for doing that kind of segregation of duties and providing those capabilities.”

Decentralised private key storage

Dencentralised offline multisig key storage is a significant advantage for some, including the CEO of one VC-backed bitcoin enterprise that has raised several million dollars.

“I can make m of n structures, where all n of the private keys are created offline,” said the CEO, who asked not to be named. “Then, how I treat those is up to me. I could put one of them online, but the point is that the choice is mine.”

The CEO said:

“There are also situations in which, for very small amounts of coin, I have a small hot wallet, where I keep $50 [in bitcoins]. That has its place.”

For those enterprises that do want more ms for their ns, on 18th November, CoinKite introduced multisig for its hardware security module. The system offers m-of-15 transactions, and like Armory, doesn’t require any of the keys to be stored on a central server, although it does offer five different options.

In the simplest storage option, CoinKite stores all keys centrally. Passphrase storage keeps the keys in the HSM, but encrypts them using the user’s unique password.

The third option, ‘invite others’, enables users to invite other CoinKite users to be cosignees, who can then choose which option they want to store their key.

The fourth option, offline, uses an open-source tool created by CoinKite, which runs in the browser and generates multisig keys.

“Some of the people who are cosigning on an account may want to use the HSM, so we support storing the multisig keys in the HSM,” said CoinKite’s Gray. “At the same time, we also give them Javascript code to generate a key offline, on a computer that doesn’t do anything else. So they can generate a key totally outside CoinKite.”

Finally, a fifth option lets users import keys from other wallets.

What’s next for enterprise bitcoin security?

Wallet companies are specifically tailoring their solutions to enterprises. BitGo has an enterprise service with features like spending limits, alerts, and round-the-clock wallet monitoring. Over at Armory, Velissarios heads up the consulting services division.

What would really help bitcoin enterprises, though, is a standard for auditing security, that goes beyond classic datacentre security and PCI security standards, to reflect the unique nature of bitcoin storage and usage.

Nothing like this exists yet. Will an existing security standards body, or an independent institution in the bitcoin world, step up?

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Australian GST Bitcoin Tax Angers Andreas Antonopoulos

No one currently knows more abut how Bitcoin works than Andreas Antonopoulos. He is a leading public speaker on Bitcoin globally, even educating the Canadian Parliament for his expertise on the digital protocol. He has literally written the book on Bitcoin mastery, and he owns or governs several Bitcoin companies. If you want Bitcoin brainpower, […]

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Instacoin Adds Two Bitcoin ATMs in Montreal Bringing Their Total To 7 In Quebec

Instacoin continues it steady growth in Quebec by adding two more Bitcoin ATMs in Montreal. Instacoin is a group of independently owned ATMs throughout the Quebec province. The goals are to bring Bitcoin awareness, promotion and ATMs to Canadian in Quebec. Their first Lamassu Bitcoin ATM launched in June of this year. Instacoins goal of […]

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