Ken Sedgwick [ARCHIVE] / is on Nostr

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🗓️ Active from 2023-04-30 to 2023-04-30
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2023-06-09 13:13:06

- reply

📅 Original date posted:2023-04-30
🗒️ Summary of this message: A witness script is needed to redeem the `to_local` funds in a force-closed channel, as described in the Lightning Network specification.
📝 Original message:
Ben,
The necessary witness is described here:
https://github.com/lightning/bolts/blob/master/03-transactions.md#to_local-output
Regards,
Ken
On Sat, Apr 29, 2023 at 7:57 PM Benjamin Weintraub via Lightning-dev <
lightning-dev at lists.linuxfoundation.org> wrote:
> Hi all,
>
> I have a question about commitments. If a peer force closes a channel by
> sending a commitment to the blockchain, what kind of witness script is
> needed to redeem the `to_local` funds? (assuming the `to_self_delay` has
> elapsed.) It seems that the transaction described here is for cooperative
> closures:
> https://github.com/lightning/bolts/blob/c74a3bbcf890799d343c62cb05fcbcdc952a1cf3/03-transactions.md#closing-transaction
> . But for force closures, I would think that the txin would need to be
> the `to_local` txout of the commitment.
>
> Concretely, I have commited the following transaction on a local simnet
> bitcoin blockchain and mined 500 blocks on top of it. I want to spend
> vout[2], how can I generate such a transaction?
>
>
> {
> "hash":
> "47d15337bb3c29c7c2881dd7cd912604b401ed221c66ea6f781b456d4983d451",
> "size": 444,
> "vsize": 279,
> "weight": 1113,
> "version": 2,
> "locktime": 551351761,
> "vin": [
> {
> "txid":
> "0248025b9447df8267d02d14c34ab9b269f52cd827132c70159a55cbf27ab3c1",
> "vout": 0,
> "scriptSig": {
> "asm": "",
> "hex": ""
> },
> "txinwitness": [
> "",
>
> "3045022100d3f52ca04d6a71587c29592931e542b16a47f3e9e577f1869b416547d00c62dd0220485da35ad31ff71b4263b1a25f0ba9f35990e1c8d5ac848365bbd588c3ce83d701",
>
> "3044022057fc3878e17a865c12d57b7885ed48f0d6122bd9e00511c8eac150180d1508d502205fd1d0674a41b3c0118d0b6c19b1c77d35fc95bb89f929da6478f22e94dbf5ce01",
>
> "5221038acdafe305edd06e91706ee687a091be306f0f29bcbda52dadde084bbaa36c902103d8fd53b9b43638c2255e1abd6f134a0232d2fba65527252c4eb81f926ddf50ad52ae"
> ],
> "sequence": 2161061453
> }
> ],
> "vout": [
> {
> "value": 0.0000033,
> "n": 0,
> "scriptPubKey": {
> "asm": "0
> 45ec86244376d47000ca6592783ba26f6b2ae619a24c8f5fad249b8c716955d6",
> "hex":
> "002045ec86244376d47000ca6592783ba26f6b2ae619a24c8f5fad249b8c716955d6",
> "reqSigs": 1,
> "type": "witness_v0_scripthash",
> "addresses": [
> "sb1qghkgvfzrwm28qqx2vkf8swazda4j4ese5fxg7hadyjdccutf2htqysq3qz"
> ]
> }
> },
> {
> "value": 0.0000033,
> "n": 1,
> "scriptPubKey": {
> "asm": "0
> 502a17644b334482d0a3f589d9861af6e2105a9b7afd3f5c258efc98bb6aeeed",
> "hex":
> "0020502a17644b334482d0a3f589d9861af6e2105a9b7afd3f5c258efc98bb6aeeed",
> "reqSigs": 1,
> "type": "witness_v0_scripthash",
> "addresses": [
> "sb1q2q4pweztxdzg959r7kyanps67m3pqk5m0t7n7hp93m7f3wm2amksa0fysc"
> ]
> }
> },
> {
> "value": 0.0002,
> "n": 2,
> "scriptPubKey": {
> "asm": "0
> 045553fc789494f16eff4cfa221d0294e140fb79772efeb7d8397d0ac1c4cf85",
> "hex":
> "0020045553fc789494f16eff4cfa221d0294e140fb79772efeb7d8397d0ac1c4cf85",
> "reqSigs": 1,
> "type": "witness_v0_scripthash",
> "addresses": [
> "sb1qq3248lrcjj20zmhlfnazy8gzjns5p7mewuh0ad7c897s4swye7zsyrm5pc"
> ]
> }
> },
> {
> "value": 0.009761,
> "n": 3,
> "scriptPubKey": {
> "asm": "0
> 2d51ca420d0b6ab56c97ca2631d7304c9ad9025252ea71f3af8f97361679042e",
> "hex":
> "00202d51ca420d0b6ab56c97ca2631d7304c9ad9025252ea71f3af8f97361679042e",
> "reqSigs": 1,
> "type": "witness_v0_scripthash",
> "addresses": [
> "sb1q94gu5ssdpd4t2myhegnrr4esfjddjqjj2t48rua037tnv9neqshqm4z7yr"
> ]
> }
> }
> ],
> "blockhash":
> "0fa78bc7e9f6e0a60be71bb5fb2eaaf42a97895bb057f09d7cbb2c49120fa61d",
> "confirmations": 500,
> "time": 1682451410,
> "blocktime": 1682451410
> }
>
>
>
> Thanks in advance,
>
> Ben
> _______________________________________________
> Lightning-dev mailing list
> Lightning-dev at lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/lightning-dev
>
--
Ken Sedgwick
Bonsai Software, Inc.
http://www.bonsai.com/ken/
(510) 269-7334
ken at bonsai.com
Public Key: http://www.bonsai.com/ken/ken.asc
GPG Fingerprint: 4695 E5B8 F781 BF85 4326 9639 BBFC E515 8602 5550
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2023-06-09 13:13:06

- reply

2023-06-09 13:08:36

- reply

📅 Original date posted:2023-04-30
📝 Original message:
Ben,
The necessary witness is described here:
https://github.com/lightning/bolts/blob/master/03-transactions.md#to_local-output
Regards,
Ken
On Sat, Apr 29, 2023 at 7:57 PM Benjamin Weintraub via Lightning-dev <
lightning-dev at lists.linuxfoundation.org> wrote:
> Hi all,
>
> I have a question about commitments. If a peer force closes a channel by
> sending a commitment to the blockchain, what kind of witness script is
> needed to redeem the `to_local` funds? (assuming the `to_self_delay` has
> elapsed.) It seems that the transaction described here is for cooperative
> closures:
> https://github.com/lightning/bolts/blob/c74a3bbcf890799d343c62cb05fcbcdc952a1cf3/03-transactions.md#closing-transaction
> . But for force closures, I would think that the txin would need to be
> the `to_local` txout of the commitment.
>
> Concretely, I have commited the following transaction on a local simnet
> bitcoin blockchain and mined 500 blocks on top of it. I want to spend
> vout[2], how can I generate such a transaction?
>
>
> {
> "hash":
> "47d15337bb3c29c7c2881dd7cd912604b401ed221c66ea6f781b456d4983d451",
> "size": 444,
> "vsize": 279,
> "weight": 1113,
> "version": 2,
> "locktime": 551351761,
> "vin": [
> {
> "txid":
> "0248025b9447df8267d02d14c34ab9b269f52cd827132c70159a55cbf27ab3c1",
> "vout": 0,
> "scriptSig": {
> "asm": "",
> "hex": ""
> },
> "txinwitness": [
> "",
>
> "3045022100d3f52ca04d6a71587c29592931e542b16a47f3e9e577f1869b416547d00c62dd0220485da35ad31ff71b4263b1a25f0ba9f35990e1c8d5ac848365bbd588c3ce83d701",
>
> "3044022057fc3878e17a865c12d57b7885ed48f0d6122bd9e00511c8eac150180d1508d502205fd1d0674a41b3c0118d0b6c19b1c77d35fc95bb89f929da6478f22e94dbf5ce01",
>
> "5221038acdafe305edd06e91706ee687a091be306f0f29bcbda52dadde084bbaa36c902103d8fd53b9b43638c2255e1abd6f134a0232d2fba65527252c4eb81f926ddf50ad52ae"
> ],
> "sequence": 2161061453
> }
> ],
> "vout": [
> {
> "value": 0.0000033,
> "n": 0,
> "scriptPubKey": {
> "asm": "0
> 45ec86244376d47000ca6592783ba26f6b2ae619a24c8f5fad249b8c716955d6",
> "hex":
> "002045ec86244376d47000ca6592783ba26f6b2ae619a24c8f5fad249b8c716955d6",
> "reqSigs": 1,
> "type": "witness_v0_scripthash",
> "addresses": [
> "sb1qghkgvfzrwm28qqx2vkf8swazda4j4ese5fxg7hadyjdccutf2htqysq3qz"
> ]
> }
> },
> {
> "value": 0.0000033,
> "n": 1,
> "scriptPubKey": {
> "asm": "0
> 502a17644b334482d0a3f589d9861af6e2105a9b7afd3f5c258efc98bb6aeeed",
> "hex":
> "0020502a17644b334482d0a3f589d9861af6e2105a9b7afd3f5c258efc98bb6aeeed",
> "reqSigs": 1,
> "type": "witness_v0_scripthash",
> "addresses": [
> "sb1q2q4pweztxdzg959r7kyanps67m3pqk5m0t7n7hp93m7f3wm2amksa0fysc"
> ]
> }
> },
> {
> "value": 0.0002,
> "n": 2,
> "scriptPubKey": {
> "asm": "0
> 045553fc789494f16eff4cfa221d0294e140fb79772efeb7d8397d0ac1c4cf85",
> "hex":
> "0020045553fc789494f16eff4cfa221d0294e140fb79772efeb7d8397d0ac1c4cf85",
> "reqSigs": 1,
> "type": "witness_v0_scripthash",
> "addresses": [
> "sb1qq3248lrcjj20zmhlfnazy8gzjns5p7mewuh0ad7c897s4swye7zsyrm5pc"
> ]
> }
> },
> {
> "value": 0.009761,
> "n": 3,
> "scriptPubKey": {
> "asm": "0
> 2d51ca420d0b6ab56c97ca2631d7304c9ad9025252ea71f3af8f97361679042e",
> "hex":
> "00202d51ca420d0b6ab56c97ca2631d7304c9ad9025252ea71f3af8f97361679042e",
> "reqSigs": 1,
> "type": "witness_v0_scripthash",
> "addresses": [
> "sb1q94gu5ssdpd4t2myhegnrr4esfjddjqjj2t48rua037tnv9neqshqm4z7yr"
> ]
> }
> }
> ],
> "blockhash":
> "0fa78bc7e9f6e0a60be71bb5fb2eaaf42a97895bb057f09d7cbb2c49120fa61d",
> "confirmations": 500,
> "time": 1682451410,
> "blocktime": 1682451410
> }
>
>
>
> Thanks in advance,
>
> Ben
> _______________________________________________
> Lightning-dev mailing list
> Lightning-dev at lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/lightning-dev
>
--
Ken Sedgwick
Bonsai Software, Inc.
http://www.bonsai.com/ken/
(510) 269-7334
ken at bonsai.com
Public Key: http://www.bonsai.com/ken/ken.asc
GPG Fingerprint: 4695 E5B8 F781 BF85 4326 9639 BBFC E515 8602 5550
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2023-06-09 13:08:36

- reply