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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba05e21001a5685f9eb4f51bd9c3d33c3ab52695420b73e066d58d50fb8d640. 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/5c975c35-8109-4dee-b5ee-5b1124ccd976.json and https://artists.proofprofile.net/proofs/artist/5c975c35-8109-4dee-b5ee-5b1124ccd976.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1854df47babfd82800938c3da30050dc5425b644715c99bb71b7d9d6298afd8b. 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/USLD91762769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24f6e91bf7520bf39ccaab2826f64276079706c717213ba12527d265e0b59c8. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/USLD91764097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5df6f0d9c63cfe10ea349638ceb33e862680cab3c484d909e65c2f3b7775d9. 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/USLD91764101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd3bdc3d7da362c76128e8323b170a37672d4fe05f3d505acd544a57e545b8f. 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/USLD91764104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce3ed18338d7c1c914d2abd730af22682cef854dfa5312fd156cb0e6e6f5de3. 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/USLD91766602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb970abbaae67c37957e3c67895be40b3b18ea6203aad3221b93d5c60ec283df5. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USLD91770823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82162c12983f8506ec88e006c716b95be4dfe0d3ecc4b58a1741cc10b0486603. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USLD91770827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069e544ab2e6b1a4635121f444b5ed24f9954ffe0efe823713bae15a3efd9234. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USLD91770831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49acede7c9f8b6b01ec71560e7b1a4f768e8ea0bee6c6c8f19917478eb613aec. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USLD91770833.
Fall in Drugs (feat. Xerdd & lilkenpaid)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6d1d91b9a90ba1bdbf3cd1beb97fe92a8b252f951f5b4bbffed2cdb390eda1. 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/USLD91765298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86454a7862dd32c8574a44701c2b281077c00255039e559f0e8d182671f3f4e4. 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/USLD91768999.
Tell Nobody (feat. lilkenpaid, Youngz 05 & Meezy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dbd71682176dc537c43bb66d474c298ecd1a5101836d11237459ec385c860c. 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/USLD91769001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748b4ce07c93c839c140a54e42bab742995a6da5af8e6a8d651b3eefb7269b5c. 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/USLD91769007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460ffaec4c9b12ddb2e17272d4a7ce647968a77c7b168df5fdb08ea8ac9f0cc3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USLD91769009.