Ratan Kumar (19 March 1941 – 12 December 2016) was the screen name of the Indian born child artist who later migrated to Pakistan. He acted in Indian and Pakistani movies. He was born as Syed Nazir Al
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 0x805fed63670e2f9e748d9c4468c90f2e627cb0c5be0d59d6f59753085ed98f5b. Chain 2 (Bitcoin): anchored in block 953954 (2026-06-16T14:18:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25ae91b4-9abd-480b-b4c9-72891bcece21.json and https://artists.proofprofile.net/proofs/artist/25ae91b4-9abd-480b-b4c9-72891bcece21.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).