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 0xbc9c2268e1d0be9fed1c14c96c14d7d896067ad5f3208a2ef1a8a6570d32fd8f. 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/6a1baf98-1f60-45e0-9b43-bd1caeeb0dc0.json and https://artists.proofprofile.net/proofs/artist/6a1baf98-1f60-45e0-9b43-bd1caeeb0dc0.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 0x813696c15df216653bd87ca4f75261d9dd34b3e452803306a696d010a3508bd3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6BQlF26EIaqZqvOvo0YOtX.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/6BQlF26EIaqZqvOvo0YOtX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277239063c74c54ac619e8f21c2f40b52222bac34861005b67d6b07c80de0517. 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/5zvuuFZp9mjoFTBo55S2DH.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/5zvuuFZp9mjoFTBo55S2DH.
{"copyright_id":"0xbc9ac9cd438453228dff795cc37b3d473a2049edb067be9df6806ac0c1bbbb78","isrc":"SE6I32055433","name":"Like Nothing Happened","registered_at":"2026-06-29T13:08:59Z","spotify_id":"3fv2Qoq14ESBrgfvOadBLr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9ac9cd438453228dff795cc37b3d473a2049edb067be9df6806ac0c1bbbb78. 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/3fv2Qoq14ESBrgfvOadBLr.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/3fv2Qoq14ESBrgfvOadBLr.