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 0xd8ae2d4d4ba5baa623c458c3da870c29b5b4b0fe6abb79244f9328565c1cbe29. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15d7fb44-789a-4e0f-b497-6d24b76a451d.json and https://artists.proofprofile.net/proofs/artist/15d7fb44-789a-4e0f-b497-6d24b76a451d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Das hungrige Glas (Glas-Trilogie Band 1) [Atemberaubend spannendes, bildgewaltiges Fantasy-Jugendbuch ab 12]
Das flüsternde Glas (Glas-Trilogie Band 2) [Atemberaubend spannendes, bildgewaltiges Fantasy-Jugendbuch ab 12]
Das ewige Glas (Glas-Trilogie Band 3) [Atemberaubend spannendes, bildgewaltiges Fantasy-Jugendbuch ab 12]