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fix(light-client): verify boundary 2-chain QCs against their own epoch #4713

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Merged
imabdulbasit merged 3 commits into from
Jul 20, 2026
+387 −13
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fix(light-client): verify boundary 2-chain QCs against their own epoch #4713

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8b28bd3
fix(light-client): verify boundary 2-chain QCs against their own epoch
bfish713 Jul 17, 2026
b5d9596
fix mid epoch check
bfish713 Jul 17, 2026
896a9e3
fix(light-client): align mock next-epoch QC placement with production
bfish713 Jul 17, 2026
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4 changes: 3 additions & 1 deletion light-client/src/consensus/leaf.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -31,7 +31,9 @@ pub enum FinalityProof {
/// * `committing_qc.leaf_commit() == leaf.commit()`
/// * `committing_qc.view_number() == leaf.view_number()`
/// * `deciding_qc.view_number() == committing_qc.view_number() + 1`
/// * Both QCs have a valid threshold signature given a stake table
/// * Both QCs have a valid threshold signature given a stake table. When the leaf is the last
/// leaf of an epoch, the deciding QC is produced in the subsequent epoch and is checked
/// against the next epoch's stake table.
HotStuff2 {
committing_qc: Arc<Certificate>,
deciding_qc: Arc<Certificate>,
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