PSOTY (originally known as Pet Slimmers of the Year) are an English post-metal/post-rock band from Peterborough, Cambridgeshire. The musical group was founded in January 2008, by guitarist and vocalis
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 0xdfb7b96f94e8707a559d88fbc1414a2ed408c1328044505f183a1e6f109ea010. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3ae1b35-6452-4d7e-8f5a-fbb3d875213c.json and https://artists.proofprofile.net/proofs/artist/b3ae1b35-6452-4d7e-8f5a-fbb3d875213c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).