(mononautical on X)
Marathon's new Slipstream service just broke the record for the largest ever #Bitcoin block, measured in raw bytes, clocking in at 3,990.36 kB.
It contains the largest ever single transaction, at 3988.96 kB, a large image inscription related to the #Runestone airdrop.
Note that these aren't the largest ever block and transaction by weight, those titles are firmly held by #F2Pool