Oliver Schröm (born 1964) is one of Germany's acknowledged investigative journalists. He is the founder and head of the Investigative Reporting Team at the Stern magazine. Since November 2011 he is th
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 0x07b06906fb7234eebb54c670b8d0822c038e8e7977d403c8669318e1e07e902d. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e7e4fdd-7838-483c-bc64-afca2fddc834.json and https://artists.proofprofile.net/proofs/artist/2e7e4fdd-7838-483c-bc64-afca2fddc834.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Die Cum-Ex-Files (Der Raubzug der Banker, Anwälte und Superreichen - und wie ich ihnen auf die Spur kam)
Die Akte Scholz (Der Kanzler, das Geld und die Macht)