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 0xd7313252eef6bf70309feb05ea95fb6284df3dc32d8415e4633dbff89f0ba4e1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd84ec5b-0832-43b1-9e83-2499331513d1.json and https://artists.proofprofile.net/proofs/artist/fd84ec5b-0832-43b1-9e83-2499331513d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nordlicht, Band 01: Im Land der wilden Pferde
Nordlicht, Band 02: Im Bann der wilden Pferde
Nordlicht, Band 03: Die Magie der wilden Pferde
Ashwood Academy – Die Schule der fünf Türme (Ashwood Academy 1)
Ashwood Academy – Das Geheimnis des Phönix (Ashwood Academy 2)