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 0x655663e274cca07f0d8cad157c1eb74f7111f228cca7d12f92ff4c29921fca5c. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb0ec2f9-55f9-442d-8678-8617ec12d8c8.json and https://artists.proofprofile.net/proofs/artist/fb0ec2f9-55f9-442d-8678-8617ec12d8c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Azamgarh Me Abhinandan Hai Akhilesh Ka (Bhojpuri Song)
Akhilesh Bhaiya Tera Jay Jaykara (Bhojpuri Song)
Patri Kamriya Mori Hay Hay Hay (Bhojpuri Song)
Laikin Ke Chhoda Patawa Bhaujai Ke (Bhojpuri)
Call Ke Detail Da Na Talak Da (Bhojpuri)
Baani Hum Nahaile Aaj Sempoo Se Aawatare Saiya Tempoo Se
Holi Mani Yah Saal Dushmanvan Ke Khoon Se
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 0x68f953d3ade96ae4da06b2fe6ffacc465d635c88abb481e138ed18e61f064bd8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USA2P2470945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03fa0329b16f16096b0a4b6b0e4df32efb737ea3387c6616f2e02d743c5ac9a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USA2P2474288.