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 0xc863c8d09065a4a0c5893aedec9d6cb7bc9b2d2b60320de0d7470ec48a4feb0b. 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/f70dace0-2e59-4396-9a4f-7ce13d411ae1.json and https://artists.proofprofile.net/proofs/artist/f70dace0-2e59-4396-9a4f-7ce13d411ae1.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 0x18b5893e980b2e28e425ef0f8002963e3cbf59a8155e88016d3969170de94dbf. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZPLS2011562.
Chanti (feat. O'Kenneth, Kwaku DMC & Terrist Carter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148adc0a550174e9f7cba5ebb72b71838d18b18c69fec2a6a28321597e69611e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USUYG1414715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148adc0a550174e9f7cba5ebb72b71838d18b18c69fec2a6a28321597e69611e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUYG1414715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d81259da8c7bbb3c4d465d41e4d63938946c764555021305c762ccc325e0ce. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUYG1414718.
Living Bitters (feat. Thywill, O'Kenneth, Reggie & Jay Money)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b245d8104a0e2a9c8870fc6c8c3fd1797cfec559422097f09c5e41f1bea2abd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUYG1414720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e314e8b116c8237d2c3f03237e87eb1867a0d2006df681f084988354d0f402. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/AUMEV2526807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d824023a5ebb4c8698e57b75458d71e7440ae648f0b2256238e570b22e3e2a8. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:23:28Z), 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/QZNMX2564669.