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--- blockchain_talk_outline [2018.06.26 16:42] – created Steve Isenberg
+++ blockchain_talk_outline [2018.06.26 17:40] – [This is Steve's outline for a Blockchain talk to Lexington Computer Group] Steve Isenberg
@@ Line 2: / Line 2: @@
 This is a work in progress.
-How are Bitcoin and blockchain related?  Bitcoin //uses// blockchain.  Blockchain is used for Bitcoin, and much, much more.  (Just like your spreadsheet program may be used to track your expenses and the books you have checked out of the library, blockchain is and can be used for many things.)\\
+How are Bitcoin and blockchain related?  Bitcoin //uses// blockchain.  Blockchain is used for Bitcoin, and much, much more.  \\
 This talk gives a simplistic overview of blockchain.
+Concepts
+  * Data store (holds transactions)
+  * Replication (many people hold the chain)
+  * Cryptography and digital signatures
+  * Immutable (hard to change history and changes are detectable)
   - Use of Blockchain for ledgers