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 0x859a40f542dedf5c632e500848f19b4acfdb5c8ba93ec533ce7b05d3c52a4e66. 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/0be8fe4a-a1dc-4771-94de-8bc961ae1ac5.json and https://artists.proofprofile.net/proofs/artist/0be8fe4a-a1dc-4771-94de-8bc961ae1ac5.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 0xa904c56faa36d095f5d0640d170475fe87bd5fc7feeb51946c0869fe9d08a97d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2GQjGLES6diRqNjkGr4Jcm.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/2GQjGLES6diRqNjkGr4Jcm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa904c56faa36d095f5d0640d170475fe87bd5fc7feeb51946c0869fe9d08a97d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/003qhOeyP0c6oD6cmvWkh1.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/003qhOeyP0c6oD6cmvWkh1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa904c56faa36d095f5d0640d170475fe87bd5fc7feeb51946c0869fe9d08a97d. 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/4iE59mShsjxkyxvzUZTYNu.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/4iE59mShsjxkyxvzUZTYNu.