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 0x0f44391bd2644817edb19168304c33a4fc321133213be78eab1d98eb6ea8de20. 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/931ab6c4-f032-4e7d-b315-1d28f8c256b6.json and https://artists.proofprofile.net/proofs/artist/931ab6c4-f032-4e7d-b315-1d28f8c256b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pakt der Galaxien [Perry Rhodan - Silber Edition 31 (Ungekürzt)]
Stadt der Freien [Atlan - Das absolute Abenteuer 6 (Ungekürzt)]