Pralhad Keshav Atre () (13 August 1898 – 13 June 1969), popularly known as Āchārya Atre, was a prominent Marathi writer, poet, educationist, founder–editor of Maratha (a Marathi language newspaper), a
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 0xf2379e7381e7138e1fa53b16344af860c88adb94606313bd0ca5d548049a048b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c09ed07-6f5e-428a-8d7b-647a3ca2713a.json and https://artists.proofprofile.net/proofs/artist/5c09ed07-6f5e-428a-8d7b-647a3ca2713a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).