Stahlnetz was a German police procedural television series with many similarities to Dragnet running from 1958 to 1968, and from 1999 to 2003. See also Episodes Stahlnetz 1958-1968 List of German tel
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5457aeb1241e4c2a31467d2bb3168a4318f698a065de44f0b74f4cd49649485f. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab465902-b67c-4bbc-8e69-a710b6ef69b6.json and https://artists.proofprofile.net/proofs/artist/ab465902-b67c-4bbc-8e69-a710b6ef69b6.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.