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 0x581da815141d2aad26c4d6fb7775cea159e47308660af9bf2b20f0172e7e823c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0f0870c-08a4-4abc-8412-7752a6fb7b73.json and https://artists.proofprofile.net/proofs/artist/b0f0870c-08a4-4abc-8412-7752a6fb7b73.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 0xa9170d5b4fb1d05e623bcb1b60e8342c545b7f90fbfc82f37f32549e37d5997e. 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/7JhPd7TZCJv9OsONJ1twj3.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/7JhPd7TZCJv9OsONJ1twj3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237f351dd5e9dd2c2d30fb47f72f9d41b5bea23151ccc72667413ff7239292d5. 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/5OSdAnnPdKg2KvsUjL1uXl.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/5OSdAnnPdKg2KvsUjL1uXl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237f351dd5e9dd2c2d30fb47f72f9d41b5bea23151ccc72667413ff7239292d5. 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/1EsVVU4G94ZdAaeEHP4T0d.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/1EsVVU4G94ZdAaeEHP4T0d.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf144545de9102c0c890ca8f79a12dec295f3910dc92783810c07ea10ebb0ed. 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/0F8zrgtCXMNXYtVJSrCHGC.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/0F8zrgtCXMNXYtVJSrCHGC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237f351dd5e9dd2c2d30fb47f72f9d41b5bea23151ccc72667413ff7239292d5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5OzZccQ49BRWOQJmSEEtnO.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/5OzZccQ49BRWOQJmSEEtnO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf144545de9102c0c890ca8f79a12dec295f3910dc92783810c07ea10ebb0ed. 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/2wraRhEHHz38zAT8TRo0Xi.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/2wraRhEHHz38zAT8TRo0Xi.