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 0xbf25453b2ae71cdb4f093b5941ace66badbc0d471c80ee8746ebaf3154adc0b9. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d14bffe-e281-47f0-9d8c-e034ea2abb0e.json and https://artists.proofprofile.net/proofs/artist/9d14bffe-e281-47f0-9d8c-e034ea2abb0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chiro Dini Aami Je Tomar (Instrumental Version)
Yash (Original Motion Picture Soundtrack)
Pratihinsa (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 0x476da9fd54d2494e1260d1e06cdc8cfce09144e20bf74aa4dd2a7af2c2367ee2. 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/INS180245005.
Poochho Mere Dil Se (Original Motion Picture Soundtrack)
Aisi Laagi Lagan Meera Ho Gayi Magan (Original)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93999f9946d7508ccd4892f099a3c99fdd2a73151074eea6834ca7f456079dec. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/INU100900580.
Ami Tomar Preme (From "Tagore Revisited")
Jhorojhoro Borishe Baridhara (From "Tagore Revisited")
Chhaya Ghonaichhe Boney Boney (Tagore Revisited)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36cdc981ce0ae401be4af2c6ff49281ff2bd0e83f142a46a676102d4abe93a92. 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/INS189222283.