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 0x6ab36bfc03b7151042c523acb74a34dbc3d9604b67a6243e16a93da28200de26. 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/975766a9-954e-488d-883b-9d35dc9ca747.json and https://artists.proofprofile.net/proofs/artist/975766a9-954e-488d-883b-9d35dc9ca747.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 0x399c887b61feef2c71145b1519b0ee65722600f01fc8af92d1cefa364ff42827. 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/TCAFA2054052.
No Sleep (feat. Key Glock & Idontknowjeffery)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65951e445e12a5a69c3d40b439f6fb66d358a1e02d20cc1c11f08e4bf8e6e80d. 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/USAT22213711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf084e94d5df0494352c21e1beb5655bbe06c59760599bb2017cba193568cfb71. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMEZE2044466.
On The Way (feat. Xavier Wulf and idontknowjeffery)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce4532b94fa464e35f0a745e932ef3a94e70f9bc847aed2edf6db1d60be7451. 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/QM24S2402934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be74fc74d803c97fd391e2c67e3dfcb6f2385c3f9c3fe87ad815a0c4e588e3f. 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/QZFZ32420432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa910dbf01fc301faac55d739f1a0bcc323c123eef722e897050ee4972267ef06. 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/QZMEM2365628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546558556a5fcd64d02183f3907081d7cf6be95e90452f3448dbfe7c120ba2f7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZMEM2365631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3e5439d3521324dba0e9e83dec297e4a398b37d1a435666fa1f31a47c1aaa7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USUYG1403084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8eb331c2ed0613a8e1932f7b646008e0550220f7ceab1dd4ace9a8b3b6c2cbf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USUYG1403085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88b572c37dff02d20d625d5bcb49898f358b993598308a766118fa142c9442b. 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/USUYG1403086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51127d31607af0a2c85e455160bc577ce02169d1c0889a460bb77facc71656b2. 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/USUYG1403087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0089ee55a54788f02bb53b92b0a98f0952b7ef47946fc151eb1e45a23917a4ed. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUYG1403088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2770eb741c78b2109c6a88384be796e89565795ff5e9930c541a2ff1c82e2733. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USUYG1403089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6435ac2ddaf7947d8d10976e8597cf1c4ee1168ef9ec5183ba19aa3af059a314. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USUYG1403090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10589ab0bed870d9d22f9c2ef9cbe9984265f3bc232938a384b880b16ecf2c16. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USUYG1403091.
Eastside Sliding (feat. idontknowjeffery & Chris Travis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad004872c8319527223485ffff988b3a141c6e747a4858a8275d20443d74134. 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/USAT21810290.