📅 Original date posted:2017-07-13
📝 Original message:Hampus, thanks for the explanation!
On 07/13/2017 03:50 PM, Hampus Sjöberg wrote:
> Yes.
> So you have two choices to be fully secure:
> 1. Validate using the new rules of the network (in other words, run a
> SegWit node)
> 2. Avoid any chain of transaction that contains a SegWit transaction
sounds good, though I'm unclear on how exactly to achieve (2) given that
any party I have ever transacted with (or otherwise knows an address of
mine) can send me coins at any time. So it seems the only possible way
to be certain is to run a node that has never published an address to a
3rd party. Is that accurate?
Another thing that could be done is to modify my own node so that it
actually rejects such tx, but then I have modified consensus rules
myself, thus defeating the goal of remaining with status-quo rules, and
anyway the rest of the network would accept the tx. I guess the benefit
is that I could be certain of the remaining funds I have.
I suppose that it would be possible without modifying any rule to
construct a "certain balance" and an "uncertain balance".
I don't intend to do such modifications! just grasping for understanding.
> See
> https://github.com/bitcoin/bips/blob/master/bip-0141.mediawiki#Backward_compatibility
> So the witness program is encoded in a new format that old nodes do not
> understand.
> This means that for old nodes, a number >0 will be put on the stack.
> When the script is done, it will be evaluated to true (because of >0)
> and be counted as a valid spend.
>
> https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki also
> explains the new witness program more in detail (I left out some details
> in my explanation).
I read the relevant parts, thanks!
Dan Libby [ARCHIVE] /
npub1hm…jk43d
2023-06-07 18:04:27
in reply to nevent1q…hu6e
Author Public Key
npub1hm38d5dwxdq5zxlnv2qdfk3flecptqwl7g7u62ja0tr92d0hmrusejk43dPublished at
2023-06-07 18:04:27Event JSON
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"content": "📅 Original date posted:2017-07-13\n📝 Original message:Hampus, thanks for the explanation!\n\nOn 07/13/2017 03:50 PM, Hampus Sjöberg wrote:\n\n\u003e Yes.\n\u003e So you have two choices to be fully secure:\n\u003e 1. Validate using the new rules of the network (in other words, run a\n\u003e SegWit node)\n\u003e 2. Avoid any chain of transaction that contains a SegWit transaction\n\nsounds good, though I'm unclear on how exactly to achieve (2) given that\nany party I have ever transacted with (or otherwise knows an address of\nmine) can send me coins at any time. So it seems the only possible way\nto be certain is to run a node that has never published an address to a\n3rd party. Is that accurate?\n\nAnother thing that could be done is to modify my own node so that it\nactually rejects such tx, but then I have modified consensus rules\nmyself, thus defeating the goal of remaining with status-quo rules, and\nanyway the rest of the network would accept the tx. I guess the benefit\nis that I could be certain of the remaining funds I have.\n\nI suppose that it would be possible without modifying any rule to\nconstruct a \"certain balance\" and an \"uncertain balance\".\n\nI don't intend to do such modifications! just grasping for understanding.\n\n\n\u003e See\n\u003e https://github.com/bitcoin/bips/blob/master/bip-0141.mediawiki#Backward_compatibility\n\u003e So the witness program is encoded in a new format that old nodes do not\n\u003e understand.\n\u003e This means that for old nodes, a number \u003e0 will be put on the stack.\n\u003e When the script is done, it will be evaluated to true (because of \u003e0)\n\u003e and be counted as a valid spend.\n\u003e \n\u003e https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki also\n\u003e explains the new witness program more in detail (I left out some details\n\u003e in my explanation).\n\nI read the relevant parts, thanks!",
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