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chaincfg: fix CSN block download on custom signets #445

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Merged
kcalvinalvin merged 1 commit into from
Oct 8, 2026
Merged

chaincfg: fix CSN block download on custom signets #445

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39 changes: 21 additions & 18 deletions chaincfg/params.go
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Original file line number Diff line number Diff line change
Expand Up @@ -969,6 +969,7 @@ func CustomSignetParams(challenge []byte, dnsSeeds []DNSSeed) Params {

assumeUtreexoPoint := AssumeUtreexo{}
checkPoints := []Checkpoint{}
ttlState := TTLState{}
if bytes.Equal(challenge, DefaultSignetChallenge) {
assumeUtreexoPoint = AssumeUtreexo{
BlockHash: newHashFromStr("0000000d0ffcda2be44be940b3f2ba0b9e1a5e60dde6d074a7dd749ef2af2061"),
Expand Down Expand Up @@ -1010,6 +1011,25 @@ func CustomSignetParams(challenge []byte, dnsSeeds []DNSSeed) Params {
{270_566, newHashFromStr("00000004d85480599a5997038d256ea2a31a8e9dca48b1e4c0298063cb016fd6")},
{signetLastCheckpointHeight, newHashFromStr("000000057858aabfe204e2e2005c33567c6e310c90467d49bea36e4343f18d53")},
}

ttlState = TTLState{
Stump: []utreexo.Stump{
{
Roots: []utreexo.Hash{
newUtreexoHashFromStr("d2d236de5dfc51f6d19e6032051e23d17190a163bd141e20fec95245daf5aeb3"),
newUtreexoHashFromStr("c162ca415897569c3587a9ed27ae2c048ae5b7beb00a7d85516b1977ef82ff5d"),
newUtreexoHashFromStr("6513784f8fa270f944d6141c7c4767b24ad41c0c8aa932ee88191b47ab9c8b24"),
newUtreexoHashFromStr("95239c0dc67fa634b46349d24ac16c4120196931a7b17022a49a71be276ab435"),
newUtreexoHashFromStr("b37dc4d51ce269e4f2510a35492d36a0fd589b5b92806af6ffa4cd9d240ef9cf"),
newUtreexoHashFromStr("d172d80ceff3674bbc94676db958cf5664d561f1424077bbf9ae16d870e474ae"),
newUtreexoHashFromStr("dfd16dcf4320b308358e878ebf55b5ea35a6e24b3db76d098e055160bf552adf"),
newUtreexoHashFromStr("291a2a4595f158eecbbf791fde3f12605671eaa091dec625eaae0684cff39809"),
newUtreexoHashFromStr("56ce0aa0aaa20f8d0f3f6480ffb8f9f80d7a530d549e50a889d430d51db91b3f"),
},
NumLeaves: signetTTLNumLeaves,
},
},
}
}

// We use little endian encoding of the hash prefix to be in line with
Expand Down Expand Up @@ -1043,24 +1063,7 @@ func CustomSignetParams(challenge []byte, dnsSeeds []DNSSeed) Params {

AssumeUtreexoPoint: assumeUtreexoPoint,

TTL: TTLState{
Stump: []utreexo.Stump{
{
Roots: []utreexo.Hash{
newUtreexoHashFromStr("d2d236de5dfc51f6d19e6032051e23d17190a163bd141e20fec95245daf5aeb3"),
newUtreexoHashFromStr("c162ca415897569c3587a9ed27ae2c048ae5b7beb00a7d85516b1977ef82ff5d"),
newUtreexoHashFromStr("6513784f8fa270f944d6141c7c4767b24ad41c0c8aa932ee88191b47ab9c8b24"),
newUtreexoHashFromStr("95239c0dc67fa634b46349d24ac16c4120196931a7b17022a49a71be276ab435"),
newUtreexoHashFromStr("b37dc4d51ce269e4f2510a35492d36a0fd589b5b92806af6ffa4cd9d240ef9cf"),
newUtreexoHashFromStr("d172d80ceff3674bbc94676db958cf5664d561f1424077bbf9ae16d870e474ae"),
newUtreexoHashFromStr("dfd16dcf4320b308358e878ebf55b5ea35a6e24b3db76d098e055160bf552adf"),
newUtreexoHashFromStr("291a2a4595f158eecbbf791fde3f12605671eaa091dec625eaae0684cff39809"),
newUtreexoHashFromStr("56ce0aa0aaa20f8d0f3f6480ffb8f9f80d7a530d549e50a889d430d51db91b3f"),
},
NumLeaves: signetTTLNumLeaves,
},
},
},
TTL: ttlState,

// Consensus rule change deployments.
//
Expand Down
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