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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0e8728e1ed1c1440f8d18830294bcc589eb43c98ac06a0bb7fe6d76295d600. 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/a9a6e11b-e5f8-46be-98ad-a5e83c776e9f.json and https://artists.proofprofile.net/proofs/artist/a9a6e11b-e5f8-46be-98ad-a5e83c776e9f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kanha Tora Bansi (From "Bijayinee Bijayi Bhava")
Parichaya Khoje Aji (From "Phalguna Chaitra")
Mo Sindurara Adhikara - Female (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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef05ed190025c6af4649416c65646b937577071f2e75a43874c5641f9179e32. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/INE182436679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef05ed190025c6af4649416c65646b937577071f2e75a43874c5641f9179e32. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/INE182436679.
My Sweet House Wife (Original Motion Picture Soundtrack)
Sata Thila Na Sarta Female (From "First Love")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6d05c8acf578c8a6bdee588e0d2cc9b0deb6ded2a16ca57af056da37345570. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/FRX452565526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce32bfbd3e0fd353012984a73dab7e0587764581fd32e858215d26d94d6a7bb1. 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/INS7D1900121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc440495a775eba98c5bf974a9469b5a9982855fd0097fb4db8cd2a2d4685c23. 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/INS7D1900124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed6a1184f355dbbb9474480971db428781627959797cdaf6c710af2f86c7b43. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/INE182449803.
Yeh Meri Family Season 2 (Music from the TVF Original Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f8178dc69585d478d78e592c3324b00adea694fe14d205860ef9af4fdb1e38. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/INC442300003.