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 0x79b623ea9b1ca599a1a20133dfc3897971a781edb69697656d83b8f21236191f. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95650f82-fa54-421b-80d7-448be7d7ee30.json and https://artists.proofprofile.net/proofs/artist/95650f82-fa54-421b-80d7-448be7d7ee30.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Saint-Seiya Sad Brothers (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 0xbe4a71d0fd4e3fb971084f219ef2cbaac94b803f4c1674fe7c21f26712468a40. 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/QZHN42398574.
Saint Seiya "Abel's theme Decision Of Destiny" (Original Motion Picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f04d841052206215be49b3c743fd9b1c101ad7c09f3659dbc1834ca659aff4. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZWFF2390736.
Saint-Seiya "Remember Sadness" (Original Motion Picture Soundtrack)
City Hunter "Piano Sequence 1" (Original Motion Pitcure Soundtrack)
"Welcome to Jurassic Park" (Original Motion Picture)
"Gally's theme" - Gunmm (Original Motion Picture)
"Les Aventures de Tintin" Overture (Original Motion Picture)
The Devil's Own (Original motion picture)