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 0x70c1dc033ef6f31aa25c81247fa193af3d105752f916814d59917718993f9ccf. 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/5e8ed252-ef6c-4faf-ad06-e1faed30305f.json and https://artists.proofprofile.net/proofs/artist/5e8ed252-ef6c-4faf-ad06-e1faed30305f.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 0xf4f9aa955c2962b0085109025d89876d1ff6accbb5c06782695d4c95955e99a9. 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/5KLcajsTeDf1xLEDFjPXLS.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/5KLcajsTeDf1xLEDFjPXLS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3232400674df3b68cc35715bac6ac0916ba6000c7de6d3947c25b935ea2ca7c5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5C9twIH3wKKWTymy7O3dKc.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/5C9twIH3wKKWTymy7O3dKc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6daad184d752903b8d182b068de5d1f87b280d80f575012b90e164bc8016eb5d. 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/79spcwlYlH92urP3gqRhCD.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/79spcwlYlH92urP3gqRhCD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfba57df6d997906dc882a93b580e335ca778d5296c7a94a10a0f6553121a8cf. 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/1c4JquxGfJ2r9NUYuPK54V.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/1c4JquxGfJ2r9NUYuPK54V.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1700962e2b38ec2c541c72b4337765094bdfe90dbbe7e69ec75e17b147f07177. 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/0qV3gBvsnx8TDxFcbmS4iP.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/0qV3gBvsnx8TDxFcbmS4iP.