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 0x6fcc4508e7170171b9a26461ec8fca11ea88f8d1fd3769a57fa5f41bff4f0b65. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c5f389f-960d-44e5-bbb5-9fef9e9f2462.json and https://artists.proofprofile.net/proofs/artist/5c5f389f-960d-44e5-bbb5-9fef9e9f2462.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x8d9ecafd59a3352535272248576e495b7f29fc9f75bc446511a6d2401bb01359. 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/5XPo15e5ICs6NvSMn44pTF.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/5XPo15e5ICs6NvSMn44pTF.
it's a little complicated, but i'm okay.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebec26609f88347d73d583346076402cb4062e6d1229c5bbf543711d5c97d264. 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/7EzHEspq8tK2m94dhvuDqS.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/7EzHEspq8tK2m94dhvuDqS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746378ffeb6947b26739a220a49eb61d32d0f29a4b56fba6d0dab4b23bb0c0d6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0u74xi5AJEulKPccore7B2.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/0u74xi5AJEulKPccore7B2.
{"copyright_id":"0x5efce5e69d533ee3a9e40b6078d134f678ccf4f59d69795d1acdfcb6429d47fd","isrc":"CA0K52400017","name":"TIME! - Proud/H4RRIS Remix","registered_at":"2026-06-29T11:51:41Z","spotify_id":"2k6PWwr9W5ivlljpDfnd5x","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efce5e69d533ee3a9e40b6078d134f678ccf4f59d69795d1acdfcb6429d47fd. 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/2k6PWwr9W5ivlljpDfnd5x.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/2k6PWwr9W5ivlljpDfnd5x.
{"copyright_id":"0x4d3df8d0fcd82f988521de2c74c11af02fc2924f44c81438c63e31186b73e8cc","isrc":"GBKPL2032204","name":"Just as Much","registered_at":"2026-06-04T16:24:19Z","spotify_id":"4OsGDNu3jFYsFqWVvckIb9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3df8d0fcd82f988521de2c74c11af02fc2924f44c81438c63e31186b73e8cc. 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/4OsGDNu3jFYsFqWVvckIb9.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/4OsGDNu3jFYsFqWVvckIb9.