thumb|Jasmin Schreiber, 2020 Jasmin Schreiber (born 1988) is a German biologist, science journalist, writer, photographer, and translator.Jasmin Schreiber: Ausbruch aus dem Friedhof der angeschriebe
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 0xfeea7162535ce8721f2cc0955c5396f37ef3e8b1528bc3dd78dc7bc933fed989. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0fb77dc7-bae2-4271-812d-8e486da94661.json and https://artists.proofprofile.net/proofs/artist/0fb77dc7-bae2-4271-812d-8e486da94661.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).