Sanju is a 2018 Indian Hindi-language biographical comedy drama film directed and edited by Rajkumar Hirani, written by Hirani and Abhijat Joshi and produced by Hirani and Vidhu Vinod Chopra under the
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 0xb3fba13b53dc2b6ff91710a69954957e57035f9db9f0e50fbcebb57ab63d6b01. Chain 2 (Bitcoin): anchored in block 953871 (2026-06-16T01:46:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07da6f25-2b52-44d7-988e-3c2344922b2d.json and https://artists.proofprofile.net/proofs/artist/07da6f25-2b52-44d7-988e-3c2344922b2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).