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 0x0f2dd151bca0a8cc9f21b6d7def8f233de654fb732d3fa84588c5b4576b3316d. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d667f0f1-6978-4ce8-94ad-5ac0d5218a19.json and https://artists.proofprofile.net/proofs/artist/d667f0f1-6978-4ce8-94ad-5ac0d5218a19.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 0xe3d592acac8f6abda7018931842186a2d79104b377cc69d0260b91a0f0252ba0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SESQC0107010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfe759b07bf4daab1c4375906c6c05978430379fdae1fc209c7445bf1aea5b2. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/SESQC0107030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ce02c89c49f3927df0b1206b50cceb7ed19c34a9f814fb7f31a551f64e936d. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/SESQC0107040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb3c725e60954072eb5a1c402a0bd39d5a3d5c989d2b22a330262fc79e001bf. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/SESQC0107070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf394338fbc2955ff0669dca8c65dc3dcd8c4969cb2f7e0b560a481aef733fc. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/SESQC0105010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eef4b0c37c965281b4deae6001e3e2885202ab279f453c85fde556f223fc820. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:16:27Z), 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/SESQC0105020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d1c6711b43dba7278dd299410b0ed177bdaa6ec75cbb4563ee0d974ac71844. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/SESQC0105070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d013783dd0ec3f6ec9fb64b405338e582d449a81775cedc3a93470e8280b06. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SESQC0108130.
Blast from the Past: The Best of Hank C. Burnette
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e368eca0cab6973bd498166a05bdc5bb9d05703892afc861044d87bbdb6c04. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/SEVGT0504009.
Blast From The Past- The Best Of Hank C. Burnette