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 0x1354de250bdbf99f47eed51f8faea9961b9030327bcc846bcc1da9a47e073f09. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8fc8c32e-1442-47e0-99d8-07b9ea703064.json and https://artists.proofprofile.net/proofs/artist/8fc8c32e-1442-47e0-99d8-07b9ea703064.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ole, der Pirat (Die komplette Hörspiel-Sammlung)
01: Das Freibeuterschiff (Ole, der Pirat)