1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x2bd2072a4ffecad2c0696ce874230cb5702ba9ad181f349d0d60335b6ed370a1. 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/a0347554-aa9d-4f6f-88fe-570e685d0fce.json and https://artists.proofprofile.net/proofs/artist/a0347554-aa9d-4f6f-88fe-570e685d0fce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a8b20b0f6b0c3e8ebfff7c4bcac53ff4fd40e7a09fa025fe947f941361935d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE862100068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1e0ff1bb42ed3a8cdebdd99d6183443b5fb977e71c0ce24faba3fa84c5ea3c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE862300188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444495444930dfc5ded9b58dc1dd5181197be341d88de753e42334461071d553. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE862200677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb20f054502153e1b2f15db6a6343c1ba8ed4c2fb1df5501eeecce5a80b90a7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE862000406.
Wrap Me In Plastic - Marcus Layton Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfd1e6035b7457218568f9f59a69516f9f83e6d57dceade0917b12664cbda22. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861904185.
Wrap Me In Plastic - Slowed Down Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5a4ef90767978a4f1ee0b8086da2c92fa7f214f004fd6690388cb3924c5627. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE862002604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef29a3d17e2da54ed24a9baf0f6ebcde38e86ccdc5a1ad27b129f0b5dcf68642. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE862002605.
Wrap Me In Plastic (Marcus Layton Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfd1e6035b7457218568f9f59a69516f9f83e6d57dceade0917b12664cbda22. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861904185.