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1 sat \ 4 replies \ @sime OP 22 Jul \ parent \ on: I built a browser solver for Bitcoin Puzzle 71: One GPU needs a ~million years bitcoin

We still have plenty of time for it to be cracked :)

I guess you mean someone front running it?

Sadly I don't have a simply idea.

First idea is to capture the TX, send it to me and find a private relayer. From what I see all relayers need accounts which I don't have.

Second idea is to watch the mempool once it's published and constantly RBF it... But to what limit ?

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1 sat \ 3 replies \ @OT 22 Jul

I mean after it is broadcast someone can can auto RBF it to their address. It has happened before.

Using something like Slipstream would be the ideal way to broadcast.

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1 sat \ 2 replies \ @sime OP 22 Jul

They need to kangaroo attack it first right ?

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1 sat \ 1 reply \ @Filiprogrammer 22 Jul

A high end consumer GPU could probably crack it in a few seconds using an optimized Pollard's Kangaroo implementation once the public key is revealed.

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1 sat \ 0 replies \ @sime OP 22 Jul

Yes, that is my understanding too.

Thinking about making the auto boardcast optional/opt-out. Then the user can decide how to boardcast the TX.

Makes the app less hands-off, unfortunately.

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