Le V ('The V') is a hotel and apartment complex in Montreal, Quebec, Canada. It is located on René Lévesque Boulevard West between Bleury Street and Anderson Street in Downtown Montreal. The hotel ha
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 0xbc988ebb51308bba0396533cc91ece1226e329eb8cd788d1fd165ec1518579d3. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f14a5b6f-48f4-4555-8ce8-9b1818ae11aa.json and https://artists.proofprofile.net/proofs/artist/f14a5b6f-48f4-4555-8ce8-9b1818ae11aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).