Yann is a French unisex given name, specifically, the Breton form of "Jean" (French for "John"). Notable persons with the name Yann include: __NOTOC__ In arts and entertainment Yann Martel (born 196
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 0xa36e53ff908391d57646d40df9b97b6d26d04ecfef5fc9bdf2cf765d81d4645c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6590fb00-7673-4e49-bc0e-1da274967377.json and https://artists.proofprofile.net/proofs/artist/6590fb00-7673-4e49-bc0e-1da274967377.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).