Payal Dev is an Indian playback singer and music composer who sings and composes music for Hindi films. She sang "Ab Tohe Jane Na Doongi" from the film Bajirao Mastani, as well as "Bhare Bazaar" from
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 0xcd2e6c3a90ca32ff3f40207c22fcb9692fb361248e0acb25822a32897db3edae. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3ec787c-564d-4128-8640-883cb3e94c19.json and https://artists.proofprofile.net/proofs/artist/b3ec787c-564d-4128-8640-883cb3e94c19.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).