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 0x02e44dc7e6b089a6df8c3b766932da915dca0d844f37258eddf597917ea769ee. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90f1a749-5688-40d3-a97a-7dba2ada8eaa.json and https://artists.proofprofile.net/proofs/artist/90f1a749-5688-40d3-a97a-7dba2ada8eaa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dead to Me (Die Welt der Arkanen Seelen: Grabflüsterer, Band 1)
Dead and Gone (Die Welt der Arkanen Seelen: Grabflüsterer, Band 2)