Joonas is an Estonian and Finnish given name, a cognate of Jonas. Notable people with the given name include: Joonas Alanne (born 1990), Finnish ice hockey player Joonas Angeria (born 1989), Finnis
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 0x469f31aa073433308480f81449c4826336af8ef6e2eecfe9b8881472cc609838. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0ad8f4d-4fb9-47b5-a4d9-f1dfaf9e16c0.json and https://artists.proofprofile.net/proofs/artist/d0ad8f4d-4fb9-47b5-a4d9-f1dfaf9e16c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).