Peccatum was an avant-garde metal band from Norway. Their influences range from black metal, progressive metal, industrial music, symphonic metal and gothic metal to European classical music and conte
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 0x104eb262906e3684ea7fcebd3212306b62504687f3382c1aaeb9908c6e63020d. Chain 2 (Bitcoin): anchored in block 953860 (2026-06-15T23:55:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02dc28c5-4762-492c-8c53-07a04d4eb920.json and https://artists.proofprofile.net/proofs/artist/02dc28c5-4762-492c-8c53-07a04d4eb920.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).