FIFO? First in first out? The blockchain is essentially the timestamping machine. The timestamp of a transaction are untrusted until mined into blocks, even the

FIFO? First in first out? The blockchain is essentially the timestamping machine. The timestamp of a transaction are untrusted until mined into blocks, even then a fork can rid them. The blockchain is essentially solving the ordering problem, one big timestamp machine. The solution you propose would require a timestamp machine in the first place lol.