Agnes Giebel/Anna Reynolds/Josephine Veasey/Philharmonia Orchestra/Otto Klemperer
{"copyright_id":"0x7467563b587ab72a58a6d22929f26072902a982a7f1d15c590f5d4d48e4c4b48","name":"Agnes Giebel/Anna Reynolds/Josephine Veasey/Philharmonia Orchestra/Otto Klemperer","registered_at":"2026-06-21T13:18:05Z","symbol":"NIM1934031","token_address":"0x35d0afed918dde44464118b557a04eaf5e12638d","type":"artist","uuid":"f1a011df-8b61-47e3-b931-bf67fe778ad4"}
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 0x7467563b587ab72a58a6d22929f26072902a982a7f1d15c590f5d4d48e4c4b48. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f1a011df-8b61-47e3-b931-bf67fe778ad4.json and https://artists.proofprofile.net/proofs/artist/f1a011df-8b61-47e3-b931-bf67fe778ad4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).