1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b91543e378d07c6de48d96dbca1306f0f8293dc8d1cc8edf69f62a51b3d2698. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f3550b2-6cd9-4d09-9fb6-877076490846.json and https://artists.proofprofile.net/proofs/artist/7f3550b2-6cd9-4d09-9fb6-877076490846.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Écrans de fumée - Cartier préféré slow remix
Écrans de fumée (Cartier Préféré Slow Remix)