Velem is a village in Vas county, Hungary. The village is situated on the slopes of Kőszeg Mountains, at the westernmost tip of the county and the region known as Alpokalja (Lower Alps). Velem is nota
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed987363c1159a5c75aca61904f06248a75c9b8fdc2fc0559abb85638a04bf0. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2631758-6041-4d20-8f78-c421030a5856.json and https://artists.proofprofile.net/proofs/artist/e2631758-6041-4d20-8f78-c421030a5856.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).