Pierrette Alarie, (November 9, 1921 – July 10, 2011)Pierrette Alarie-Simoneau obituary, July 13, 2011 was a French Canadian coloratura soprano. She was married to the French-Canadian tenor Léopold S
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 0xd5d5992d9e4d7441b5313580c58de13dd0cbbbb17fa1020b3dff3ec49ba16b8c. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fabcb790-dc5c-4c68-82da-103f0ab75cc8.json and https://artists.proofprofile.net/proofs/artist/fabcb790-dc5c-4c68-82da-103f0ab75cc8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).