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 0x22b8e85c184f35892a309f3a1fb6b0d438b3cf688e7e22a6ef5aea81982d003a. 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/4433b125-7d87-4c99-bd21-f7b397d0ea74.json and https://artists.proofprofile.net/proofs/artist/4433b125-7d87-4c99-bd21-f7b397d0ea74.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 0x283f6ff35f931d17f4989c63396df7ec80968cd2692050d0818ef46268717293. 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/USSM10204455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4df0606fc8cbb5a92a966a40f1537d6130f9a78d7b7f4f0193e928801ea7b1. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USSM10202851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0450d67127a61849ffe85bb63721e4572681765cd51486d0d50739077744fd87. 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/USSM10202853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29b0e12d69141cfd77358f607d7761020da14602652baae29a8bf30fb4a0e1c. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USSM10202856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d065adde90116492265fb139b43adda5456acd6e46d705fde2e3babd20120e7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USSM10202858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d6e22f7cfb15b4b2b6b728a10d8c0d2931b9948f9451c2d47aff79b23d8b30. 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/USSM10202860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd536064dbb6e07d72dbb418b05aa797ee88eba01512b691e2536dd7eedffc28f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USSM10202861.
Warren Haynes Presents: The Benefit Concert Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc572f4fad03cef300759d6027035b90b05d5015e97cdabad584abb1f3adb1b9. 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/US5YX1000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a56321ee7a3099e7b8b4688cda981093a5ba18549ee29d6c1adb0bb853721d8. 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/US5YX1000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8c044f028eff28a7cadf7fc7cf6d641d53eb2bc322c9ede331e86a65931671. 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/US5YX1000030.