Sulk is the second studio album by the Scottish post-punk and pop band the Associates. It was released on 14 May 1982 on their own Associates imprint of Beggars Banquet Records for the UK and througho
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5712cc5cb6afd1f600510bf325ad26452dbcfbf92ad5fb08cf8dd98a016a5d. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff01d8e9-f6fa-494a-bbfb-d65ce8fdf17b.json and https://artists.proofprofile.net/proofs/artist/ff01d8e9-f6fa-494a-bbfb-d65ce8fdf17b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).