Bob McElrathRe-Imagining Cold Storage with TimelocksCold storage is a technique to keep keys offline and inaccessible to attackers. It is used by most major Bitcoin exchanges, occasionally…Aug 10, 2016Aug 10, 2016
Bob McElrathWhat’s Wrong with Proof of Stake?Using computers to manage assets is not new. Indeed that’s a major reason computers were invented. What, then, makes Bitcoin and…Jun 14, 201613Jun 14, 201613
Bob McElrathBlockchain Proof of LocationAn event (defined by the hash H) can be constrained to exist within a time window A < t < B by hashing H with the most recent block hash A…May 17, 20162May 17, 20162
Bob McElrathIs Bitcoin’s Proof of Work Useless Work?Charlie Brummitt asked me an interesting question the other day: “can bitcoin mining be changed so that the computations could…May 11, 20162May 11, 20162
Bob McElrathThree Challenges for Scaling BitcoinThe most savage controversies are those about matters as to which there is no good evidence either way. - Bertrand RussellApr 26, 20161Apr 26, 20161
Bob McElrathGo Fork Yourself (to More Bitcoin Transactions)What is Bitcoin? There are two good, possible answers:Apr 19, 20161Apr 19, 20161
Bob McElrathBring Science to BitcoinBitcoin and crypto-currency is a nascent field. There are a lot of new, un-vetted ideas floating about. This field really got kicked off by…Apr 6, 20161Apr 6, 20161