Shashikala Saigal (née Jawalkar; 4 August 1932 – 4 April 2021), better known by her first name, was an Indian film and television actress, who played supporting roles in hundreds of Bollywood films be
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 0x25c3eca86ee48594d449110a4fc5bf6956bd323f9e83b920b3febf49cc3f9887. 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/608556b6-d9f9-472f-8177-866e177cce51.json and https://artists.proofprofile.net/proofs/artist/608556b6-d9f9-472f-8177-866e177cce51.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.