1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xc6d7fae34c5bad5cd7a9a0e9dd6cfd197c89f10287d81cda0325daabd11198eb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd88b7e4-5625-4b81-ac20-e009ad0fc1ed.json and https://artists.proofprofile.net/proofs/artist/bd88b7e4-5625-4b81-ac20-e009ad0fc1ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xf2d2ea02bf06fedede412b41d32d02f85b3a91454fce0b4a9d43a172a3dbb1f6","isrc":"QZVEM2353738","name":"Forgot to put the hook (Again)","registered_at":"2026-06-28T19:57:28Z","spotify_id":"1PGDRjJxNA9QED63EfQjAJ","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d2ea02bf06fedede412b41d32d02f85b3a91454fce0b4a9d43a172a3dbb1f6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1PGDRjJxNA9QED63EfQjAJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1PGDRjJxNA9QED63EfQjAJ.
Will You Hold My Hand If the World Ends (@Grimes)
Will You Hold My Hand If The World Ends (@Grimes)