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 0xd5b8d1d5ecc3158e3e35d51ac67c447745dc1472b4a1020f22325760915b3bcb. Chain 2 (Bitcoin): anchored in block 954046 (2026-06-17T04:53:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4136db0b-822c-4ff0-a642-6029417b0b64.json and https://artists.proofprofile.net/proofs/artist/4136db0b-822c-4ff0-a642-6029417b0b64.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Saiyan Maza Levas Raat Ke (Bhojpuri Song)
Yaar Sange Jalu Ukhiya Ji (Bhojpuri Song)
Humra Se Rangva Dalvala Ae Bhauji (Bhojpuri Song)
Devra Wala Lel Bainganma (Bhojpuri song)
Kre Ka Gaya Sahariy Jalu (Bhojpuri song)
Hamra Chhaudi Marad Bnale Kat Jaitu Thanda Ge
pathar ke halo tohro karejwa dilwa denhi ge tod
Ghante Ghante Khojahau Gaya Jila Thanma Ge
Lahnga Las Las Karai Ge Chauda Ranglai Manjhiyanva
Banke Bazar Ke Mela Me Baitha Debo Hindaula Pe
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 0x643d705e94cbfd3c9f7f100e98db7355d90eb6afdb1b75e81df104ec1be3f526. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/INN242514125.