Yens is a municipality in the Swiss canton of Vaud, located in the district of Morges. Geography Yens has an area, , of . Of this area, or 54.5% is used for agricultural purposes, while or 38.5% i
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 0x697073bdf41d43c4161a38a14a3716b62d5f62b3e4534b17ae07059abc68c313. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75d96e51-681c-4b11-baa3-8ffcec4f2d25.json and https://artists.proofprofile.net/proofs/artist/75d96e51-681c-4b11-baa3-8ffcec4f2d25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).