Ignasi Vidal i Molné (1904–1988) was a Spanish painter and illustrator. Born in Barcelona, the son of the writer Cosme Vidal i Rosich (known as "Josep Aladern"),Obra completa, by Ferran Canyameres,
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 0x01e364eab6da51ada93d3227016c16bfaee9300927c6a5aa2efc284116285f1c. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13c4d139-1870-4587-9f9d-7f28a4089cb0.json and https://artists.proofprofile.net/proofs/artist/13c4d139-1870-4587-9f9d-7f28a4089cb0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).