Walter Bruno was born in Montreal, Quebec, Canada. His career as a writer of plays includes three productions, Shouting for Joy and Hand-to-Hand, and, in collaboration, a translation of Alfred Jarry'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 0x7fc6bb24190eca65f7dce62596e1e68a2a30453ab0d23490462bac53ab8f089a. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6128989-a1ad-407f-b8d4-b02921abddd6.json and https://artists.proofprofile.net/proofs/artist/c6128989-a1ad-407f-b8d4-b02921abddd6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).