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 0xfd23beeb9f8cd005411cfd13a9212edd8f59e69411a2bcbacbae2ed3f3024942. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75635b82-fa92-44d7-972a-89c322cec88d.json and https://artists.proofprofile.net/proofs/artist/75635b82-fa92-44d7-972a-89c322cec88d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tope Tope Ganga Jal Bhuiya Girat Rahe Ho
Lalu Chacha Ke Thik K Dibhole Nath Ji (Bhojpuri)
Jaiha Jan Ahina Ke Toli Chor De Ahira Nash Ke (Bhojpuri)
Tattoo Banwali Dil Per Ahiran Ke (Bhojpuri)
Maiya Aao Na Odhi Ke Chunriya Bhawan Apne Beta Ke Ho
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 0xd9d7f2db3cd1c50a1a5784054b31cb138a3ae282be832ce8037f9a74e224498d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/INB942523466.