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 0x669b51c42a7635f4ffcbe48dea8d8b110179b23e136e6bbb47a5759c0104aa76. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a79f6f5-5908-4a36-8c57-c625bb0b8a98.json and https://artists.proofprofile.net/proofs/artist/0a79f6f5-5908-4a36-8c57-c625bb0b8a98.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Tohra Akhiya Ke Kajra Ye Jaan Jhagra Kara Deleba
Tu South Ke Pushpa Raj Hum Bhojpuri Ke Shilpi Raj
Ram Je Ke Bahil Janamwa Chal Na Sakhi Sohar Gaawe Ho
Maja Lutal Chahataru Kuwar Me (Bhojpuri)
Pani Me Garai Chhal Chhal Karai (Bhojpuri)
Nachenge Chhama Chham Chham Chham (Bhojpuri)
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 0xaf70eefc39e3ecbe5d94a20f220828fe43ca405fe964b1650f8a62b2ee5d648f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INB1K2200097 — a six-check JSON result.
Hae Pal Ke Jhukadi Kavano Paida Na Hoe (Bhojpuri)
Maja Dem Ayarva Biyaha Karab Tab (Bhojpuri)
Tabij Bana Di Ojha Ji Hokar Maliya Pat Jay (Bhojpuri)
Jaan Phone Jan Kar Pariksha Niyarael Ba (Bhojpuri)
Chhauda Counter Par Sutake Encounter Kaile Ba
Pati Diah Baba Apno Se Bhola Na (Bhojpuri)
Pyar Kareli Sa Jha Bhar Rowaweli Sa Raat Bhar
Othlaliya Lagawal Chhor Dihani Dogalvan Ke Takala Se
Saiya Savan Me Na Aaya Devar Mor Devghar Ghumaya
Saiya Dhake Head Light Good Night Bolela
Saeya Dhake Head Light Good Night Bolela