Notable examples of double-spends Do you know any real-world examples of double-spends, where the second transaction was accepted to the block?
There's https://doublespend.cash/ for BCH but for BTC I would like some examples where the second transaction is accepted. (And this website shows all occurences of double-spends. I just want some successful ones.)
Yes, I did some double-spends playing on-chain games. It was years ago when a game (for example luckyb.it) accepted transaction with high-S-value, but most of pools did not include it into the block. The strategy was: send a bet with high-S-value, doublespend it if loss or wait several hours for a pool what confirm it on win.
As far as I remember, successful doublespend was performed by pool operator (I do not remember which one) when Bitcion forked in 2013 (0.7 to 0.8 version upgrade)