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 0x567847c29ba2951f127f9bf16b28473d85529b891c82bcfbb10df6667381e662. 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/9094906f-8ecb-4fbb-967d-39864645397f.json and https://artists.proofprofile.net/proofs/artist/9094906f-8ecb-4fbb-967d-39864645397f.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 0x2a0f2515e2eb6910584bb60f2c8dad41e649509e39ba238801d3c40b37986cfa. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMKTC1600079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd753fc1c968f90b268519aa7fad01cb97b7631a977655719adccb863b248ed22. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM4MA1800180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260c602b6c6bd4bf4300355f1bf586c5284f68d4d97e505b4eae63825d94eff7. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QM4MA1900152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d2c8d50c361abf8d9f9ef78189791d29e3eec304e83f6704fb7b81b7bffa3a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM4MA1900154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e8d580a61c1b4fa86124cc47cf2524c299c5ab0bb8b677b39975b21f690a9c. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/QM4MA2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574b7a1c61eb9c60ed3738202b62a4b9f6ef2d9684d0b6a63cc35e4954310ed4. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QM4MA2200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd49c3beb2eb9d2586f5cf7c8deb23b0ee8446a8a6b05856ee15effe6883510a. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QM4MA2200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16836cb52c0acd3abace9075fa4d5f0070d10f501e82a4773d4d40228b723e5d. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:25:33Z), 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/QM4MA2200071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff20e1b4abe77ee68087f876ab9fdc43336c11bdfa1e7ae30021322cea9dbee. 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/TCAIT2471002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1868aa798ccae486b99f49a2be1c8c9367cc02a09e768990cecbe70775379d4. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/TCAIT2471025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837a189eab5e08cd95208843f51a68d76b72bcb8f03da55ead9f2ca4d7e9a9c2. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:05:29Z), 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/TCAIU2471059.
They Said It Wouldn't Last (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb261f50540d1c6e330e27409383066432777a9fea4f683ea8398de2c500de11. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAIT2471098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eec8cf4e9d7028764a1c19a5fd68b4512bdf598d05b8b222586b4f70d872f30. 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/TCAIV2471120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf70c644f23f8b9f46699250dca0333f8bfe2d8d7312be8606ead1ea5107e6ed. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAIU2471148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d757aef64e94a96bb0c26140ab28dc15052a48bd606d543d9b69c204e4307e9. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/TCAIT2471166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831018e2a618a26d59ed9268e86e22f737428ec26f8dd7f129fcc7f6e1722e1c. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TCAIT2471189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd564cc73ad35386868f8b91d53ca6352510af3f617efb1e37ca87db5037244f1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM4MA2300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647c5b749c675bbf78de77415697c5841fd1e47a4779a5c65fa2dcdd0fb283bc. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/TCAIW2456761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc39c556242c4b621362fb0cf36451b5fdd312f8074543345e310b014b8d026. 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/TCAJZ2530852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d82950e2c1fac305c29c19011dece36cf95f71b5bb2a205f2e711c55f09b7ff. 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/TCAJZ2530896.