large mining pool that does not publish its mempool

[citb0in]

Hi all,

is there any well-known and large publicly known mining pool that does not make submitted transactions publicly visible until the corresponding block has been mined? This mining pool should enjoy a good reputation and be known for a very long time.The mempool should remain hidden from the public until the block in question has been mined. That means the pool does not broadcast transactions from their mempool to the network.

Is there such a pool, who knows more about it?

[ABCbits]

MARA's slipstream[1] fit your criteria, since they're willing to accept non-standard TX (which not relayed by most full nodes) and state they won't broadcast your TX before it's mined by them. I don't remember whether similar service also does same thing though.

[1] https://slipstream.mara.com/

[kano]

Other than accepting txns that standard core might not, for any other reason it, to be blunt, seems an odd thing to do.

I guess one use would be, to hide that you've succeeded in stealing someone's BTC, and then there's no chance they could RBF it.

Another point would be that it would delay the transaction.

Since the transaction is going to go public as soon as it ends in a block, I'm wondering what's gained by not distributing your transaction to the network before that happens.