Wilf is a masculine given name, most commonly a diminutive form of Wilfred or Wilfrid. It is also a nickname and a surname. People Given name Wilfred Arthur (1919–2000), Australian World War II fig
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 0xf47a28cb3c5b035da8e00459d554d359a4c3f6584873365ef849c1d91f50d2eb. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f37d108e-4a49-475d-93e6-34ec4e16a29b.json and https://artists.proofprofile.net/proofs/artist/f37d108e-4a49-475d-93e6-34ec4e16a29b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).