Harsh Tyagi (born 23 December 1999) is an Indian cricketer. He made his List A debut for Railways in the 2018–19 Vijay Hazare Trophy on 20 September 2018. In October 2018, in the final of the 2018 ACC
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 0xc60ea5bbaa6479b9c573e56c53b476eb0cf76dc659eb72797b7d1252cc45788b. 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/de9adb52-4c5a-4aa8-bdb6-0e35c564f336.json and https://artists.proofprofile.net/proofs/artist/de9adb52-4c5a-4aa8-bdb6-0e35c564f336.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).