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 0x68111788ba6d5badfa7724e68062d9b0d2b4ed5347c83978fc55e348781c3ec4. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad46d115-c345-483e-9d22-94831667f7e4.json and https://artists.proofprofile.net/proofs/artist/ad46d115-c345-483e-9d22-94831667f7e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Death - A Series About Life (Soundtrack)
Fjorden Cowboys (Original Motion Picture Soundtrack)
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 0x1f88a88b10805675796f487f4a17b9767ba2815aee25bd06104fd3003e4067dd. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:11:39Z), 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/NOMCQ1501040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c06060c8d5595bc78d734ed45b1b351d384a02a13bf8681d057c90e3996f67. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/NOMCQ1501060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e284d48a09388cff4bcbc52317383e005bc0a27cdadbece9ce20f86e2265fa4. 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/NOMCQ1501070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690f4378ebe13ace343d5fde0c8f62499f73fc3ad446d06e7af33319ac7df691. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:09:07Z), 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/NOMCQ1501090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bb570d7cbc625192f4dd8c0eec88cb4bc492c337a00e170bc0274ec5cb2df7. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:41:27Z), 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/NOMCQ1501100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5db3144ec8b61c3d171e387cc2e9b8ebb9125ebfa7e975732066dd87c1a44c. 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/NOMCQ1501130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c13b1b5c624f17af146207b2deccdc55677a2386953372ab4cd61b983818be. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:28:01Z), 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/NOMCQ1601020.
Lothe Strikes Oil + Joar Theme Revisited
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf726461f80422a369ad24c54f9fbb1aafcd0b8d042cfe770461c5afd15b34f4d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NOMCQ1601040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319049a6bc0f91811da42cac4a66f172b466516eefbe85160ddd7040fc4e10ac. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:30:48Z), 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/NOMCQ1601070.