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 0xfd89c48e8520cbc405ee712f75ca676ed2552a393b0c490b6d9360cff0f5191b. 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/69fee9cf-e7a9-4b6e-b491-a104a2a223b1.json and https://artists.proofprofile.net/proofs/artist/69fee9cf-e7a9-4b6e-b491-a104a2a223b1.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 0xc65b610121e24e23165081a656498f3d6d523929a254c6f789ddca24f461933f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZTB62219380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7239bef5765122aac1c717fa45abe3cd0c7aa2c271e0774f6e314165a424db34. 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/CH6542246626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ec330ff7e4e291344693e6972a4ea819d211929c45774cc7afa43f7dd7e9b1. 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/DECE72203239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8c17abcc45692118a58ee8295ded0c8796bb8e57b2ad516d39880ae73520d7. 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/CH7812233401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34d1502ee51b65c8bfec52bc01d67417bf7cbcc55f9d0ed057ffe174c07263c. 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/CH7812230838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b58ce29538606bfa74ec9049d3603f53c6b9810a8c4b3ec77a8b2b3bde03fe. 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/CH7812230840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d1baa3dfdfb3d4ae9acf4f74bb3674b8a2527002383dcc08b30f8dee695899. 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/CH7812232499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9035b078887e4d61ca746319c5684dcd11fd2b269ce2ef07bc45ae5bebf0cbdb. 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/CH7812420647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fd65b1233471910c027c04f2798b2b6605cbd9a3aab72f635e74ec4ce7577f. 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/CH7812423343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825790d77e15dd87f69cf58c7b3340712c88ed52bd324ba773f877a42a22f11d. 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/CH7812421312.
Cypher (Bobby Van Damme, Obby, TANO77, Emo79 & dreamerscartel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5484214b1ed4c5481b13c0b749d7efd13a8a5ea63c92253008c76af72918b24a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CH7812225972.
Cypher (Bobby Van Damme x Obby x Yassine x Adaver x Mohams)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a6c40620fbb310a8f03ec69a76ea713b6edd2e502adb8ff21aa4c85b5c0ff1. 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/CH7812225974.
Team Dorian VS Team San Andreas (Part 1 von 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f2dadec3333a9a322fde09787e23e979d5e265a67d88224d6e1b989eba12ab. 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/CH7812423479.
Team Dorian VS Team San Andreas (Part 3 von 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69415c492e14cc796e1627178a5ee60f3d52ab880a93ad15c2c58cf876458a12. 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/CH7812423481.