S. P. Rajkumar is an Indian film director, who directs Tamil films. Career He started his film career as a dialogue writer for the 1997 film Once More. In 1998, he directed his first feature film Po
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 0x4c4c13585e0b392da5cc28f42d8e8983f75e00615c033b227ed65915768f8eb6. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be4022a3-b1d0-40bf-8848-5f48dee59221.json and https://artists.proofprofile.net/proofs/artist/be4022a3-b1d0-40bf-8848-5f48dee59221.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).