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 0x2cc6b8c829322d93de84e15103139ec6a2024df972052050c977c08c5ab75b17. 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/5ff0e575-9639-4cc7-bdf3-a32c3b078908.json and https://artists.proofprofile.net/proofs/artist/5ff0e575-9639-4cc7-bdf3-a32c3b078908.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 0x06641d143d53ce6c3fb3ea4ddda5664d863a5503048ae9fc8f53f977c614f215. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QMCTU1300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98885922f4db271322cd547d97586ac6fb5e3cda6dd6c007d213eb152ce8096. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US4VX1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b30ef3e188cc5ddd1babb1fc861e5aafd75ac74978c6039f652286e34626b6. 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/GBSMU8250497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3174cdac081300bc35cd3aa423cd80e91b50bfdc2ae7a3a1e1fa15f1838792. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBFVW2100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd01c55e848e6908725e4c67d3f1c4f69d8f2a1cc3e799396e1048b8a98eb775. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:43:51Z), 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/QZMZ92393718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680a9110037b9318aacb736fb62ce2d0def6702225c78a5fbc267dbaf1695ab7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZNJZ2416532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486588f95b1fec91267e102a289accfb81b23d77e54cd4181036ef0d47606420. 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/GBEUE1500256.
Better Than Love (Remix) [feat. Irie Love]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ba7172e348b57e413fa26aa576f05c5b610b361fbf6b88983f2561c4e096c7. 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/QMCTU1400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc041fd1ec9c002bc4d57a101fe4f04eab2678cd8241994cfc4e893cbe1021dfa. 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/GBEUE1500262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d2fda2111da55cd52a66fd4dcea8bb1933d802908a21eecb6d7c2b7d021d1b. 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/QMCTU1400010.
All I Do Is Think About You - Terror Danjah Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f456313817e74a980aee66d98ef5591f26f28146ad4cc1a1b7f064e1fafe63. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBEUE1600223.
End of Time (feat. Stephen Marley & Jah Cure)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f719ace7ca7b332f7ac3601642b9c0ba6b8df399c0f213722e1b4d93d1999b. 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/USGYI1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c3052506cb13d5796e3de2255ebdb005db4e478323aab9be24a555accb7ced. 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/TCADM1817350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3174cdac081300bc35cd3aa423cd80e91b50bfdc2ae7a3a1e1fa15f1838792. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBFVW2100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bf1fdb70c8b2809fc3413a2032b67d4a74a3e8154b3d607e1214385c2eca51. 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/USVPR1600585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8b4847e68338315056bd797fede15959a6362202530ae1446c754dfcd716dc. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QMCTU1500020.
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 0x9d063bb6e6fbe3e92f411a5757f7a0a13a6c220964042b5fd3a6dc2873e446a8. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USGYI1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf774f261c1447b9ab512d9f50e0a9931d7636d8a0555322b1dc15c3ff2f73a5a. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/TCAEW2067111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc1498b129b4c479db3265e50239f43ab8b98d0ba37451a2e15066c3bcd396c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TCAEQ2020854.