Jean may refer to: People Jean (female given name) Jean (male given name) Jean (surname) Fictional characters Jean Grey, Marvel Comics character Jean Valjean, character in novel Les Misérables
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f2618c078786626f8f8b7c4a7ab74a9410978ba8feb8518798f023f9e6ae5e. 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/62f93d3f-4651-44af-a1b7-9be30e9e7cdb.json and https://artists.proofprofile.net/proofs/artist/62f93d3f-4651-44af-a1b7-9be30e9e7cdb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).