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 0xe3af50f81a8ccc0e65c29c7084bf935a55de51f53bbe9a99157a6e1a06a8a96d. 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/215e08ef-4568-4dbe-98e5-14197ae863b9.json and https://artists.proofprofile.net/proofs/artist/215e08ef-4568-4dbe-98e5-14197ae863b9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Xaver Wuschelkovsky und die Baumhausschule
Xaver Wuschelkovsky dem Osterhasen auf der Spur
Xaver Wuschelkovsky und der freche Schatzmeister
Xaver Wuschelkovsky als Forscher (Wo sind die Dinos in der Bibel?)
Xaver Wuschelkovsky und das verschollene Baumhaus
Xaver Wuschelkovsky und der helle Finsterwald
Xaver Wuschelkovsky geht zur Kinderzahnärztin
Xaver Wuschelkovsky Abenteuer auf der Ritterburg