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 0x318963b8ed575b88f031dc13bd6b95ebc8ba904f8e5144427038efabb3bbcabb. 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/7b5f98d1-a6af-42af-9084-8a65acb7a253.json and https://artists.proofprofile.net/proofs/artist/7b5f98d1-a6af-42af-9084-8a65acb7a253.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xd2a844b329bef28d8c0d5cf4caaa38223693ed2047e3fc813064c8dcaf75831b","isrc":"QZGLM2495805","name":"Hoy Se Goza - Remix","registered_at":"2026-06-07T13:22:05Z","spotify_id":"4aORssKR8aICQAorbuNjlo","type":"track"}
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 0xd2a844b329bef28d8c0d5cf4caaa38223693ed2047e3fc813064c8dcaf75831b. 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/4aORssKR8aICQAorbuNjlo.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/4aORssKR8aICQAorbuNjlo.
{"copyright_id":"0x362ad7e7d6eae14fe5cb7d03d3d0fb139a10a2db1cc25d75a4e3b2f7af6a2a24","isrc":"SGB502468266","name":"La Hooka","registered_at":"2026-06-19T04:04:19Z","spotify_id":"28wEnxaFdJ9kIV74kuQ3tS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362ad7e7d6eae14fe5cb7d03d3d0fb139a10a2db1cc25d75a4e3b2f7af6a2a24. 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/28wEnxaFdJ9kIV74kuQ3tS.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/28wEnxaFdJ9kIV74kuQ3tS.
{"copyright_id":"0xd2a844b329bef28d8c0d5cf4caaa38223693ed2047e3fc813064c8dcaf75831b","isrc":"QZGLM2495805","name":"Hoy Se Goza - Remix","registered_at":"2026-06-07T13:22:05Z","spotify_id":"0SzM8St3kiU8OmGGTdMXcu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a844b329bef28d8c0d5cf4caaa38223693ed2047e3fc813064c8dcaf75831b. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0SzM8St3kiU8OmGGTdMXcu.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/0SzM8St3kiU8OmGGTdMXcu.
{"copyright_id":"0xdc0d94cafc3655bc311cdd6fa1703b88d2db370c6b3e3359ae91c202832b7b4f","isrc":"USLZJ2434246","name":"Tu Y Tu Dema","registered_at":"2026-06-08T20:57:50Z","spotify_id":"64ZJzKtrIOgOLzwFDO117i","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0d94cafc3655bc311cdd6fa1703b88d2db370c6b3e3359ae91c202832b7b4f. 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/64ZJzKtrIOgOLzwFDO117i.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/64ZJzKtrIOgOLzwFDO117i.