“Since modifications and deletions of blockchain records are not permitted, all entries must be 100% valid or the entire model (ledger) could be compromised. Think of blockchains as just another application for data storage. It has limited data storage capabilities, is not very fast, but is designed to be highly distributed and 100% reliable. If your application or host can be tampered with, so can you blockchain. The goal—securing both during their design and implementation so this can never occur.”