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 0x3ea0546c3b8982ae1f29c017bf90b39e46b50a78108667063e8ae079a0382ef5. 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/a881efa6-efb1-4279-be6a-04974e3b38a1.json and https://artists.proofprofile.net/proofs/artist/a881efa6-efb1-4279-be6a-04974e3b38a1.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 0x9bea9931b04c285c8aea49012b4e6dac0b9b39e85ea1e0771caa06a80805ed58. 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/USUYG1452062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b383f24c24024ce5113b92104290aa09752c24963aa3e370eb7c044bc97a19d. 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/USUYG1378480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ffb4b975e3a0049e8c15280ee2577218f3b74efe1dd204f64c60fffaf9f481. 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/USUYG1378155.
Plug Conversations (Bonus Track) (feat. Allstar JR)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9c4b5ddd0ff93f0ca1498fce8c7d85ed2811f801d37433c52efce2bbd3fcc9. 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/USUYG1159829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546f5bb490067028f07bdd87358acabb08890c31a7622846f8e23c73d58eeec6. 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/QZTGW2402920.
Introducing Steelz (feat. Allstar JR & JUSTIN CREDIBLE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2676c0453e1d71963f9632d6567c0748865639fa576a6f8489eeadae5017df40. 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/USUYG1521841.
Mafioso (feat. Steven B the Great, Allstar Jr & Sweezee Don)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d1746e6268de4aa8daea7a067984005152b6c3a8376d446f1ef9b92619e952. 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/TCADM1855286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd0d085c094f74e999972b6fa2cbccaff576f6037acba7b9b1d8b44e298f6b5. 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/USUYG1475909.