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 0x80074f0cad9c33519c4be18f84d9f7ae65dd50920a72fdde4ab97d67dbf935e6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba26b9cf-d44d-4ff2-be24-063cb9a5a8f0.json and https://artists.proofprofile.net/proofs/artist/ba26b9cf-d44d-4ff2-be24-063cb9a5a8f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You've Never Been to Konotop (Selected Works 2009-2012)
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 0x03175ba9ccc522cc7a22fc8479935decb2fdff5bd76c2de643a162fa4cebcd96. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:07:37Z), 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/BEZ351800137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4834c7aa43373e724678e9bab8e8b989194ecc4018384eb3c0f5084b49949ebb. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:58:06Z), 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/BGAE72500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9338a55a0617816c6d047dc80d244e3f4165bf4b2edc3db7e195d8f82b42d0f8. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/BGAE72500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9d1cf04b1b71da4f7ca73ef9cad4f9d44213540de51c3d9738bed94db60f14. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/FRIDO2598773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b834dcd1f3ebf280c349af658f146cad9b1d5353629516c5463d48430ee2c9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRIDO2598774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427e19c45210fca730c7a7ad406dae68f29e0fa041594ef354d7f7b08f00cde9. 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/UAKK11900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdccbccf2ac6049257be930821524b9acf59f6be4e7a2f74f5f1b3cc4de8170d. 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/UAKK11900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff33346b58a1ccfebb84610a9bb50579d4a05e77a405a0ea8d78ddd1770ea25e. 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/UAKK11900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9695677987093dd82f0484936122ac2338222a8d3b44d0abf1f36b7cba3cd0d4. 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/UAKK11800142.
Sri Venkateswara Mahatyam (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ff24fb5ffd374441a0f478ace351099b0706bbf94ba75046d428fbb9275052. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/INH100631942.
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