thumb|A fresco of the last court minnesinger, Hugo von Montfort, from Pfannberg Castle|330x330px Hugo von Montfort (1357 – 4 April 1423) was an Austrian minstrel of the Late Middle Ages. Life Hugo VI
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 0x54f297cc095fd5231a970373538c79e1e4fd0a1bc5438c0a2faca65221419c08. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4fd00f1-71ca-4030-9d8f-fa0d55b9bfd6.json and https://artists.proofprofile.net/proofs/artist/b4fd00f1-71ca-4030-9d8f-fa0d55b9bfd6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).