Mike Hearn

Author of 4 BIPs.

BIP 31: Pong message: Deployed. Adds a "pong" reply that a node sends back when it receives a "ping" containing a random number. This lets software reliably tell whether a connection to another node is still alive.
BIP 37: Connection Bloom filtering: Deployed. Lets lightweight wallets hand a full node a Bloom filter (a compact, approximate summary of what they care about) so they receive only relevant transactions. This made phone wallets practical,…
BIP 64: getutxo message: Closed. Proposed a network message letting a node ask peers whether specific coins are still unspent. It was aimed at lightweight clients but was not adopted, partly because peers' answers could not be…
BIP 70: Payment Protocol: Deployed. Defines a payment protocol in which a merchant sends a signed payment request directly to the customer's wallet. It aimed to improve checkout and protect against attackers swapping addresses, though…