📅 Original date posted:2018-02-21
📝 Original message:Thank you Daniel!
Your detailed explanation did clear things up :-)
ᐧ
On Wed, Feb 21, 2018 at 6:29 AM, Daniel Robinson <danrobinson010 at gmail.com>
wrote:
> Yes, although it's a functionality of Bitcoin Script generally, not OP_CSV
> in particular. Bitcoin Script allows you to use nested IF statements, and
> enforce whatever different conditions you want in each branch.
>
> Here's your contract in Ivy <https://ivy-lang.org/bitcoin/>;:
>
> contract MultiCSV(
> bob: PublicKey,
> carol: PublicKey,
> bobDelay: Duration,
> carolDelay: Duration,
> val: Value
> ) {
> clause bobSpend(sig: Signature) {
> verify checkSig(bob, sig)
> verify older(bobDelay)
> unlock val
> }
> clause carolSpend(sig: Signature) {
> verify checkSig(carol, sig)
> verify older(carolDelay)
> unlock val
> }
> clause bothSpend(bobSig: Signature, carolSig: Signature) {
> verify checkMultiSig([bob, carol], [bobSig, carolSig])
> unlock val
> }
> }
>
> It compiles to the following Bitcoin Script:
>
> PUSH(carolKey) PUSH(bobKey) 2 PICK 2 EQUAL IF ROT DROP 0 4 ROLL 4 ROLL 2
> 2ROT 2 CHECKMULTISIG ELSE ROT IF DROP CHECKSIGVERIFY PUSH(carolDelay)
> CHECKSEQUENCEVERIFY DROP 1 ELSE NIP CHECKSIGVERIFY PUSH(bobDelay)
> CHECKSEQUENCEVERIFY DROP 1 ENDIF ENDIF
>
> On Tue, Feb 20, 2018 at 5:32 PM Praveen Baratam via bitcoin-dev <
> bitcoin-dev at lists.linuxfoundation.org> wrote:
>
>> Hello Everybody,
>>
>> I need a little clarity about how OP_CHECKSEQUENCEVERIFY (CSV) works in
>> transactions.
>>
>> Can I use multiple CSV end points as depicted in the figure below? I
>> basically want to allow different conditions at different delays.
>>
>> [image: Multi CSV.png]
>>
>> I just want to know if OP_CHECKSEQUENCEVERIFY can be used to achieve the
>> above.
>>
>> Thank you.
>>
>> Praveen
>> ᐧ
>> _______________________________________________
>> bitcoin-dev mailing list
>> bitcoin-dev at lists.linuxfoundation.org
>> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
>>
>
--
Dr. Praveen Baratam
about.me <http://about.me/praveen.baratam>;
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Praveen Baratam [ARCHIVE] /
npub14s…wv9e3
2023-06-07 18:10:59
in reply to nevent1q…738d
Author Public Key
npub14sz60zalvsz094ekxmgq2xpcsr67a9aljeqcny479lc8mpsp95jqfwv9e3Published at
2023-06-07 18:10:59Event JSON
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"pubkey": "ac05a78bbf6404f2d73636d005183880f5ee97bf96418992be2ff07d86012d24",
"created_at": 1686161459,
"kind": 1,
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"content": "📅 Original date posted:2018-02-21\n📝 Original message:Thank you Daniel!\n\nYour detailed explanation did clear things up :-)\nᐧ\n\nOn Wed, Feb 21, 2018 at 6:29 AM, Daniel Robinson \u003cdanrobinson010 at gmail.com\u003e\nwrote:\n\n\u003e Yes, although it's a functionality of Bitcoin Script generally, not OP_CSV\n\u003e in particular. Bitcoin Script allows you to use nested IF statements, and\n\u003e enforce whatever different conditions you want in each branch.\n\u003e\n\u003e Here's your contract in Ivy \u003chttps://ivy-lang.org/bitcoin/\u003e:\n\u003e\n\u003e contract MultiCSV(\n\u003e bob: PublicKey,\n\u003e carol: PublicKey,\n\u003e bobDelay: Duration,\n\u003e carolDelay: Duration,\n\u003e val: Value\n\u003e ) {\n\u003e clause bobSpend(sig: Signature) {\n\u003e verify checkSig(bob, sig)\n\u003e verify older(bobDelay)\n\u003e unlock val\n\u003e }\n\u003e clause carolSpend(sig: Signature) {\n\u003e verify checkSig(carol, sig)\n\u003e verify older(carolDelay)\n\u003e unlock val\n\u003e }\n\u003e clause bothSpend(bobSig: Signature, carolSig: Signature) {\n\u003e verify checkMultiSig([bob, carol], [bobSig, carolSig])\n\u003e unlock val\n\u003e }\n\u003e }\n\u003e\n\u003e It compiles to the following Bitcoin Script:\n\u003e\n\u003e PUSH(carolKey) PUSH(bobKey) 2 PICK 2 EQUAL IF ROT DROP 0 4 ROLL 4 ROLL 2\n\u003e 2ROT 2 CHECKMULTISIG ELSE ROT IF DROP CHECKSIGVERIFY PUSH(carolDelay)\n\u003e CHECKSEQUENCEVERIFY DROP 1 ELSE NIP CHECKSIGVERIFY PUSH(bobDelay)\n\u003e CHECKSEQUENCEVERIFY DROP 1 ENDIF ENDIF\n\u003e\n\u003e On Tue, Feb 20, 2018 at 5:32 PM Praveen Baratam via bitcoin-dev \u003c\n\u003e bitcoin-dev at lists.linuxfoundation.org\u003e wrote:\n\u003e\n\u003e\u003e Hello Everybody,\n\u003e\u003e\n\u003e\u003e I need a little clarity about how OP_CHECKSEQUENCEVERIFY (CSV) works in\n\u003e\u003e transactions.\n\u003e\u003e\n\u003e\u003e Can I use multiple CSV end points as depicted in the figure below? I\n\u003e\u003e basically want to allow different conditions at different delays.\n\u003e\u003e\n\u003e\u003e [image: Multi CSV.png]\n\u003e\u003e\n\u003e\u003e I just want to know if OP_CHECKSEQUENCEVERIFY can be used to achieve the\n\u003e\u003e above.\n\u003e\u003e\n\u003e\u003e Thank you.\n\u003e\u003e\n\u003e\u003e Praveen\n\u003e\u003e ᐧ\n\u003e\u003e _______________________________________________\n\u003e\u003e bitcoin-dev mailing list\n\u003e\u003e bitcoin-dev at lists.linuxfoundation.org\n\u003e\u003e https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev\n\u003e\u003e\n\u003e\n\n\n-- \nDr. Praveen Baratam\n\nabout.me \u003chttp://about.me/praveen.baratam\u003e\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20180221/6c93a074/attachment-0001.html\u003e\n-------------- next part --------------\nA non-text attachment was scrubbed...\nName: Multi CSV.png\nType: image/png\nSize: 119739 bytes\nDesc: not available\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20180221/6c93a074/attachment-0001.png\u003e",
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