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 0x369f87f031547e21b6a790e37972638b403f8ab6c7d44cdc1591139f85b71dfd. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b215e727-519e-4ac0-9798-25f3e4596615.json and https://artists.proofprofile.net/proofs/artist/b215e727-519e-4ac0-9798-25f3e4596615.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 0x95eb07f5e2b029eb8862c71efd22cf38943eec4b61133d49bf949600cf2576c4. 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/QZHN92453568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa230c7242b0f0af3f2ea6d943fbca15f511ba0fa44c4532bb6133015b79600f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM81348595.
Grace and Love (feat. Todd of Z4L, Dwayne Reed & Decipha)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dd9b46a38f1d6fc6b4bb1b70822dae733aa59f99ca2832863aac9052b71b01. 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/USCGH1539420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1d90e917c9db9e82b1ea32547ec70e14ffb272dbb13d3578f921a27f6b47c6. 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/USHM21569333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572e8677dd82abda474bc7327862d10b47bc319d4d183f85a04e062f8ccd373f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UST2Y1200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34ccef54822bb74dda8b13e26af3f544af978b4876a9ac8ffeecaaebf2226b9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/UST2Y1200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3291dc98986e672c8e557a66dac614e7bbb8f415294e1e2751bd7dbd552e0e85. 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/UST2Y1200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890bb23611d8a1816de0b28b9ebe62e58bbb1d514dbbc43e0c0efbf5ad3bef38. 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/UST2Y1200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0f020bf56158c895c6dbd6561c0aa8a1b3f90355690bb4545af6861828435f. 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/USACX2100693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132e533a3ed87bf07dc8984a72ad0868798b60cc9004e465141f35fd845b0ac7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USACX2200200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5eb59d90b04f2eef79dff79edd6d46ce3f5a42dcd8ba79fb9afdaeb3f48c33b. 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/TCABO1388638.