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 0xf9f2e8e1790c7d749db3a0d7417fb60ccd15553741c0b89039399fe749832915. 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/8734ab8a-1928-4fd7-86d2-b812775affe3.json and https://artists.proofprofile.net/proofs/artist/8734ab8a-1928-4fd7-86d2-b812775affe3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Folge 3: Das unheimliche Haus des Richters
Folge 2: Der Doppelmord in der Rue Morgue
Folge 7: Die Elixiere des Teufels / Der Sandmann
Folge 1: Der Magnetiseur / Der Fall Waldemar