Those transactions side stepped the mempool and entered the blockchain by being submitted directly to miners via API. If Slipstream isn't a centralizing attack on bitcoin I don't know what is. Luckily wallets hadn't been built for it, and V30 removes the incentive to do it.
Replies (4)
They were NOT submitted to miners.
Slipstream absolutely was an attack on the network, but it was only possible because the filler was only applied in policy, not in consensus.
Bip110 would reject blocks containing transactions from slipstream.
Core v30 didn't fix anything, it just opened the door for abuse wider.
How else did they get into a block then?
They were relayed through regular nodes running libre relay.
I myself had one running and saw many transactions > 80 bytes in my logs.
Made several posts about it with txids so anyone could verify.
