-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
On 4 August 2015 16:02:53 GMT-04:00, "Jorge Timón via bitcoin-dev" <bitcoin-dev@lists.linuxfoundation.org> wrote: >One thing I've noticed there seems to be disagreement on is whether >miners' upgrade confirmation (aka voting) is necessary for >uncontroversial hardforks or not. To be clear, without a strong supermajority of miner support the fork risks attack. Requiring 95% approval - which is actually just a 50% majority vote as the majority can squelch the minority - is an obvious minimum safety requirement. Another option is Hearn's proposal of using centralised checkpoints to override PoW consensus; obviously that raises serious questions, including legal issues. For forks without miner approval miners have a number of options to defeat them. For instance, they can make their own fork with a new consensus algorithm that requires miners to prove they're attacking the unwanted chain - Garzik's recent 2MB blocks proposal is a hilarious, and probably accidental, example of such a design, with the original Bitcoin protocol rules having the effect of attacking the Garzik 2MB chain. -----BEGIN PGP SIGNATURE----- iQE9BAEBCAAnIBxQZXRlciBUb2RkIDxwZXRlQHBldGVydG9kZC5vcmc+BQJVwS7F AAoJEMCF8hzn9Lnc47AH/3926JLE4Rn9Fil+wvfxhfmBqIm0wtfStPDAqsQMDIbh kbxOw/Mai/AbqNUkYUWvoM2ZfJ/JNkA6HA977CE6huT1ozYVz8TJQmcqN/p1QXfX w1559UsXXop2fepY1dbnyBUwB6w6VwBrfj3awYkJsblgcdHrEsAesYeAHphAkwL/ kxQ0b+QmttaDCSK76hNloKVcN7AczdCSw1pux2rzmsG9zkwWJrIqR/prAO1nuk9Y LgQUCvYkZiMmMD8kNx9ZVRG2Y951uLS6594Qy6ZoAMAdA6QxNsP4qyE7s8M2HAon WjdS0UqTRyJuDVqpNav6WX4jTllK/UuHRUAOmBmYaRs= =0cKq -----END PGP SIGNATURE----- _______________________________________________ bitcoin-dev mailing list bitcoin-dev@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
