Words on Bitcoin Design, Privacy, Security and Crypto, by Sergio Demian Lerner Contributions to Bitcoin and the cryptocurrency field This is a list of contributions to the cryptocurrency ecosystem. Many of them have been first published in this blog. Some others are hidden in forums. The FirmCoin QixCoin: The first Turing-complete cryptocurrency MAVE: Digital Signature Protocol for Massive bulk verifications MAVEPAY: a new lightweight payment scheme for peer to peer currency networks(Link) New Opcode: PUSH_SIG Paycket protocol: How to reward nodes that relay txs PayQueue: Still another protocol to reward nodes that relay txs Hidden-branch-protection Protocol Soft-fork Proposal: allow nLockTime specify an upper limit instead of lower limit The Tick Method: How to prevent wallet theft BIP: Increasing the Network Hashing Power by reducing block propagation time HL mining protocol (Heavy/Light mining): reducing block propagation problems New opcode: OP_PUSH_BLOCK_DATE Still More New ...