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Words on Bitcoin Design, Privacy, Security and Crypto, by Sergio Demian Lerner. Contributions to Bitcoin and the cryptocurrency field. HC Family of Block Cipher modes. How DECOR can eradicate selfish mining incentive by design. On August 16, 2015. Simulated Brains, Smart-contracts and the direction of time. On March 30, 2015. Faster SHA-256 ASICs using carry reduced adders. On February 17, 2015. The core part of Bitcoin mining is performing a double SHA-256 hash digest and comparing the result against th.

This was about the worst surf we had on offer. It went tubular at times, was up to 5ft on the tide and we had some great sessions on it. It basically worked most of every day and was a 50m walk from the Jayco.