Supriya Joshi is an Indian playback singer. She has over 300 songs and has more than 1000 live shows in India and abroad She was a participant in the national singing competition Sa Re Ga Ma Pa. Care
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 0x7aad825c53813f959ef54d92afc0cb5faf48ff80f6554118ea796e595e2608a5. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/65b336d5-688b-4fa8-8f61-c6624e38cce0.json and https://artists.proofprofile.net/proofs/artist/65b336d5-688b-4fa8-8f61-c6624e38cce0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.