See the shared ledger before the hype
Explain blockchain as a replicated, append-only ledger and name what that does and does not prove.
The move: define the ledger before debating the technology. A blockchain is best understood as a shared, append-only ledger. Participants do not merely send a file to one owner. They maintain copies of a record, accept updates through a protocol, and link new blocks to earlier blocks with hashes. The hash chain makes old changes visible because changing one earlier entry breaks the later links. What it helps with Blockchain can reduce reconciliation when multiple parties need one accepted sequence of events. It can also improve auditability because the history is designed to be append-only, not silently overwritten. What it…
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