Spiral, under Jack Dorsey’s Block, which is committed to making mining more decentralized, supports three Stratum V2 developers – Matt Corallo, Fi3 and Pavlenex. Other key contributors are Rachel Rybarczyk of Galaxy Digital; 4ss0, which is a pseudonymous developer funded by Foundry; Chris Coverdale, an independent developer funded by BitMEX; and Lorenzo Bonazzi of Summer of Bitcoin, according to the press release.