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 0xb61521ae94b317de37c2160417c7ebfff6e2174fd8805cc1bdf539e17c19a76a. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2e7bf62-fec5-48e4-a4b4-e9f6288d7337.json and https://artists.proofprofile.net/proofs/artist/a2e7bf62-fec5-48e4-a4b4-e9f6288d7337.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Double Babuaa Khelaibu (Bhojpuri Bolbam Song)
Kaise Khelab Asho Rang Ae Saiya (Bhojpuri)
A Raja Ji Kaisan Bate Tohar Manawa (Bhojpuri)
Sp Daroga Ke Choli Me Rakhle Bani Ho (Bhojpuri)
Holi Me Dimpalwa Chhinar Bhail (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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc205c5245023c78627db5af8ae66b6fb4400b6b7670a9bac7343475b8629029. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/INH512014929.