Virgen is a municipality in the district of Lienz in the Austrian state of Tyrol. It includes part of the Virgen valley in the Venediger Group mountain range, and extensive parts of the municipality a
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 0xfb014fbd6bfda0cf044a55da60585f326a8e8aa091250daade6a370aef14ffc4. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/951e8cd2-1044-4a98-b0df-1ab7ce1330df.json and https://artists.proofprofile.net/proofs/artist/951e8cd2-1044-4a98-b0df-1ab7ce1330df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).