More than 30 Bitcoin Core developers and contributors have signed an open letter to the bitcoin community about the process of reaching a technical consensus for bitcoin scalability. Signatories on the list include current Bitcoin Core maintainer Wladimir van der Laan, Blockstream co-founder Pieter Wuille, tree chains developer Peter Todd and litecoin creator Charlie Lee, though former Bitcoin Core maintainer Gavin Andresen and bitcoinJ developer Mike Hearn are notably absent. The letter follows weeks of heated debate regarding whether the network should be augmented to allow for more transactions to be processed per block. The current version of Bitcoin Core processes blocks approximately every 10 minutes, with a data limit of 1MB. Andresen and Hearn are…