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 0x45365167315a66c09debad3fc69e794b1184d6d3a4e961ca8fb34986fdead72e. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0898b433-0e7c-4905-9f49-2a52a3f499ff.json and https://artists.proofprofile.net/proofs/artist/0898b433-0e7c-4905-9f49-2a52a3f499ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Catacombia. Abstieg in die Tiefe [Band 1 (Ungekürzt)]
Catacombia. Grimorgas Erwachen [Band 2 (Ungekürzt)]