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chore(bridge): add a comment on observability [skip ci]

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erhant 2026-07-28 19:49:02 +03:00
parent 21af565ee3
commit 931b0e9956
1 changed files with 7 additions and 0 deletions
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7
lez/programs/bridge/src/main.rs
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@ -63,6 +63,13 @@ fn main() {
// Replay protection: the receipt PDA exists iff this op id was
// already minted. On replay it is non-default and the whole
// instruction is a no-op.
//
// Observability note: a no-op replay and a real first mint are both
// successful txs, so an indexer cannot tell "credited here" from
// "already credited by a peer" without deriving the receipt id and
// checking whether it existed before this block — the receipt claim
// is the only on-chain signal. Relevant once the explorer surfaces
// deposits.
if receipt.account != Account::default() {
(unchanged_post_states(&pre_states_clone), vec![])
} else {