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 0x2e43711a795fde9e78446915d241ae7c82657194505254576bdf2f2bea9cf95d. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0cbf9c4-4abb-46a0-a535-8bf44dc772ff.json and https://artists.proofprofile.net/proofs/artist/d0cbf9c4-4abb-46a0-a535-8bf44dc772ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bhola Baba Lagava Bera Paar(Maithili Shiv Bhajan)
Latar Patar Kni Kam Karu (Maithili Geet)
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 0xd93d1ae68a745031f553ab16631b386f1dcbbbdada6aac2b63704b27d84ec3ee. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/INS7A1627061.
Kaniyaa He Doo Go Dhaniyaa Da (Bajjikaa)
Halla Chhai Saunse Bjariya Me (Maithili)
Dunu Hath Jori Karu Mati Ke Prnaam (Maithili)
Ki Kahiyo Ge Kariki Tohar Bajab Bar Anmol Chhau