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 0x37a1a9407ef1c385452d8041c7fc1dd631118f437bce61b94ad2ee6b3392de42. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2d6f789-c962-4da2-a4b5-b732820cdd73.json and https://artists.proofprofile.net/proofs/artist/a2d6f789-c962-4da2-a4b5-b732820cdd73.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Des klugen Investors Handbuch (Warum man mit "Nein!" das meiste Geld verdient und mit welchen Großaktionären man sich ins Bett legen darf.)
Dieses Buch ist bares Geld wert (Warum das ganze Leben ein "Deal" ist und Sie die Handwerkerrechnung immer sofort bezahlen sollten)