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 0x113817b0a4513592da877d3f5c60c83dd9c2fad6b23877da3d2775900fb5c5b7. 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/70a2b3dc-db91-4d7f-8518-e7b07c5d3287.json and https://artists.proofprofile.net/proofs/artist/70a2b3dc-db91-4d7f-8518-e7b07c5d3287.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x241a39838bd2188ad48db116878bfbabaf66339b4120d99db0b98ad53ef49fde","isrc":"GBGLW2400240","name":"Victim or Survivor","registered_at":"2026-06-04T12:19:31Z","spotify_id":"5qB9mtv6dvVhhIRSHd68dh","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 0x241a39838bd2188ad48db116878bfbabaf66339b4120d99db0b98ad53ef49fde. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5qB9mtv6dvVhhIRSHd68dh.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/5qB9mtv6dvVhhIRSHd68dh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf284d4ac4860a932909895763255c9bae935daa6d2175b17c16604103739105. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ocjYsO5clrdyyudTXtJmW.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/4ocjYsO5clrdyyudTXtJmW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf284d4ac4860a932909895763255c9bae935daa6d2175b17c16604103739105. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6aPeYc7jkkzVqhBNrbkko5.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/6aPeYc7jkkzVqhBNrbkko5.