Spiral, owned by Jack Dorsey’s Block, which has promised to make mining more decentralized, supports the three developers of Stratum V2: Matt Corallo, Fi3 and Pavlenex. Another major contributor is Rachel Rybarczyk of Galaxy Digital. 4ss0 is a pseudonymous developer funded by Foundry. Chris Coverdale, an independent developer funded by BitMEX. Lorenzo Bonazzi of Summer of Bitcoin, according to a press release.