Craig Henry is a residential neighbourhood in Knoxdale-Merivale Ward in the west end of Ottawa, Canada. It is located in the former city of Nepean. It is a residential subdivision that was developed f
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 0xd9711031f55c2c6464ec44b3d25b3211b669f62f97384441d0f93d8043568de1. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15781979-a215-4e0c-a8f8-fc6400049c69.json and https://artists.proofprofile.net/proofs/artist/15781979-a215-4e0c-a8f8-fc6400049c69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).