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 0x3bbc6254cbcdc71cbafcabeb9980dd34192679e88728da9266a96feb93f10be8. 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/2100f792-4204-4004-b1c4-7dc225003672.json and https://artists.proofprofile.net/proofs/artist/2100f792-4204-4004-b1c4-7dc225003672.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 0x282c906f27ef559e3130732f5a3a187f440b0c1a06b76da90e461740bac65e11. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0OmN0X5OhGuRbgcD6fxt4F.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/0OmN0X5OhGuRbgcD6fxt4F.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e2b1f20b3af2e09909edc8e6f08dce3930b709d358e381eec8bec99227f2ae. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5D8ChOpWBYGR5R1NFDhL1z.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/5D8ChOpWBYGR5R1NFDhL1z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c48a311731cc9e53132bb01d0608f3decfafb774980739df56f0e9db7b74543. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/39OxRj9DNcUFoPW8f9CDbk.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/39OxRj9DNcUFoPW8f9CDbk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b20dad2c40529013152f204e6e956a874dcd34522971d5cf2998e008b58be6b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6dsQdraBlI7nBql2FJ5Icy.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/6dsQdraBlI7nBql2FJ5Icy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b20dad2c40529013152f204e6e956a874dcd34522971d5cf2998e008b58be6b. 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/3sUz8i1MkQXP8HrGJMltKA.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/3sUz8i1MkQXP8HrGJMltKA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8a06912e4472ee1385b98b400c32ba62f4072d047610a2ecc2b4378d545c85. 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/2ibgEFxP0yEPy5WdpkB4oK.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/2ibgEFxP0yEPy5WdpkB4oK.