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10 sats \ 9 replies \ @Murch 19 Oct 2023 \ on: Normal & Rare. bitcoin
I think we haven’t had a multiblock reorg in something like five years
What is the most large multiblock reorg in the history?
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The fix to the March 2013 chainsplit between version 0.7 and 0.8 reorged out a chain of 25 blocks (although some miners kept building on it until the fork chain was 32 blocks long). The longest natural reorg was 4 blocks starting from block 174161.
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Is possible make 100?
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Theoretically yes, but incredibly expensive and as an attack completely unreasonable
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If is theoretically and unreasonable why the Coinbase tx need 100 blocks of maturity to spend it?
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The only downside of overestimating the maturation period is that miners can spend their reward with a slightly longer delay. The downside of underestimating it is that you create an incentive to attempt long-range reorgs. 100 blocks to be on the safe side seems completely fine to me.
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This is why the first bitcoin tx was sent at block height 170 between two people after the maturity of the reward to spend it?
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I assume it just lined up with the conversation of Hal and Satoshi, but yeah, the funds had to have matured to be spent. IIRC, the original client would even wait 120 blocks before spending a coinbase output.