thumb|Kemfert speaking at Fridays for Future rally in Berlin, Germany on 31 May 2024 Claudia Kemfert (born 17December 1968) is a German economist focussing on energy research and environmental protec
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 0xbbfe10f3762167850f2dc3e27996a0ed62a03e02dc7ce833a469677357285925. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94153de1-58a8-4bbb-a92e-829fc393b265.json and https://artists.proofprofile.net/proofs/artist/94153de1-58a8-4bbb-a92e-829fc393b265.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schockwellen [Letzte Chance für sichere Energie und Frieden (Ungekürzte Lesung)]