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 0x4eb4e79a219e871db2428ee9af458ee213c8accfa1fd730d5dd93c28477ffefe. 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/57b18ba1-ba1d-4d42-8c20-6cb6027b3049.json and https://artists.proofprofile.net/proofs/artist/57b18ba1-ba1d-4d42-8c20-6cb6027b3049.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x18e88c39adafb9c626f6c85ec18c5841bdd460806e52fedc2ca74e158716ee19","isrc":"GBKPL1964486","name":"Dare You","registered_at":"2026-06-29T10:42:00Z","spotify_id":"3UOZogdC48SwnzpCOIrsWu","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 0x18e88c39adafb9c626f6c85ec18c5841bdd460806e52fedc2ca74e158716ee19. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3UOZogdC48SwnzpCOIrsWu.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/3UOZogdC48SwnzpCOIrsWu.
Light Of My Life, You Cast A Shadow On The Wall
{"copyright_id":"0xaab92f70fc3a504469b000e7c270e765c8367fe0b55f6c58d41fc4181ac84ae5","isrc":"USLD91721214","name":"Sundays (feat. LOONY)","registered_at":"2026-06-06T00:57:29Z","spotify_id":"7tIICbUgVgBSeiP5D9kTSS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab92f70fc3a504469b000e7c270e765c8367fe0b55f6c58d41fc4181ac84ae5. 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/7tIICbUgVgBSeiP5D9kTSS.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/7tIICbUgVgBSeiP5D9kTSS.
{"copyright_id":"0x6205e2cf39d0503bd684d7da38921c992a8f3f3d8d00fb465ae58473892041a2","isrc":"USZXT2350912","name":"What I Wouldn't Do/North Star Calling","registered_at":"2026-06-08T18:24:17Z","spotify_id":"3XAzZZoJeLmIGAGYH7rTBj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6205e2cf39d0503bd684d7da38921c992a8f3f3d8d00fb465ae58473892041a2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3XAzZZoJeLmIGAGYH7rTBj.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/3XAzZZoJeLmIGAGYH7rTBj.