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 0xe14512598099d3a73592870c48de735f6d71f9b62b1354baaaf9e26a1ee8a3f1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09d8f295-a24f-4185-ab10-d6f9eba8b3cc.json and https://artists.proofprofile.net/proofs/artist/09d8f295-a24f-4185-ab10-d6f9eba8b3cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xf83f5a0b4178ce5cefdcdee1064b0dbab6a2561bafd0e66e51a08d3026eeca5d","isrc":"QM4TX1872516","name":"Bing Bong","registered_at":"2026-06-28T22:59:50Z","spotify_id":"113xgW0eYPC9Kil9BEMS7O","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 0xf83f5a0b4178ce5cefdcdee1064b0dbab6a2561bafd0e66e51a08d3026eeca5d. 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/113xgW0eYPC9Kil9BEMS7O.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/113xgW0eYPC9Kil9BEMS7O.
Küsst Du mich nicht heute Nacht (Why not Tonight)
Essential Classics, Vol. 486: The Silhouettes