Dieter Wolf is a Swiss orienteering competitor. He received a silver medal in the relay event at the 1972 World Orienteering Championships in Jičín, together with Dieter Hulliger, Bernard Marti and Ka
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 0x9e1d91672652b7bb7dd77dbc31f085efa26396fa3999938b141b936ad7a25d64. Chain 2 (Bitcoin): anchored in block 953600 (2026-06-14T06:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0dbc348e-2efa-49bc-94e9-8c015fa2002e.json and https://artists.proofprofile.net/proofs/artist/0dbc348e-2efa-49bc-94e9-8c015fa2002e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).