thumb|Ponk and sev, a Gujarati dish Ponk or Paunk (Gujarati પૌંક) is a Gujarati snack made from tender roasted sorghum grains mixed with other products such as sev. To prepare the snack, the green im
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 0xdf65429a061c434ad9e0285a1c29634423f3348186ab70863ce2212ab1b896a1. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8009d5d-27d2-4a27-b03c-e0df21bb421f.json and https://artists.proofprofile.net/proofs/artist/f8009d5d-27d2-4a27-b03c-e0df21bb421f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).