📅 Original date posted:2016-11-16
📝 Original message:On Thu, Nov 17, 2016 at 1:00 AM, Eric Voskuil <eric at voskuil.org> wrote:
> This is a misinterpretation of BIP30. Duplicate transaction hashes can
> and will happen and are perfectly valid in Bitcoin. BIP34 does not
> prevent this.
Sorry for moving the topic, but isn't duplication of tx hashes
precisely what BIP30 prevents?
That was my undesrtanding but should read it again.
Since regular txs take inputs, the collision is extremely unlikely
(again, this is my understanding, please correct me when wrong), the
worrying case is coinbase txs (which don't have input to take entropy
from). By introducing the committed height, collisions on coinbase txs
are prevented too.
If I'm wrong on any of this I'm more than happy to learn why.
Jorge Timón [ARCHIVE] /
npub1fx…cl2d8
2023-06-07 17:54:25
in reply to nevent1q…26q6
Author Public Key
npub1fx98zxt3lzspjs5f4msr0fxysx5euucm29ghysryju7vpc9j0jzqtcl2d8Published at
2023-06-07 17:54:25Event JSON
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"pubkey": "498a711971f8a0194289aee037a4c481a99e731b5151724064973cc0e0b27c84",
"created_at": 1686160465,
"kind": 1,
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"content": "📅 Original date posted:2016-11-16\n📝 Original message:On Thu, Nov 17, 2016 at 1:00 AM, Eric Voskuil \u003ceric at voskuil.org\u003e wrote:\n\u003e This is a misinterpretation of BIP30. Duplicate transaction hashes can\n\u003e and will happen and are perfectly valid in Bitcoin. BIP34 does not\n\u003e prevent this.\n\nSorry for moving the topic, but isn't duplication of tx hashes\nprecisely what BIP30 prevents?\nThat was my undesrtanding but should read it again.\nSince regular txs take inputs, the collision is extremely unlikely\n(again, this is my understanding, please correct me when wrong), the\nworrying case is coinbase txs (which don't have input to take entropy\nfrom). By introducing the committed height, collisions on coinbase txs\nare prevented too.\n\nIf I'm wrong on any of this I'm more than happy to learn why.",
"sig": "4dd84aefd12f0768ac2a8ee4037b78ab5503bbf1be9c314c10e1206961d6287cd0d33893bf4124f0720d5a79a3d2d6f469d0f47c3819246279c193bddbb096c7"
}