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Welcome to Carrie's Crypto Corner!

A Blockchain is a continuously growing list of records, called blocks, which are linked and secured using cryptography. An open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way. Wikipedia
A Distributed Ledger, also called a shared ledger, is a consensus of replicated, shared, and synchronized digital data geographically spread across multiple sites, countries, or institutions. 👈 Decentralized. 😀 Wikipedia
Blockchains can potentially do all sorts of things, including, but not limited to: recording of events, medical records, and other records management activities, such as identity management, transaction processing, documenting in general, food traceability, voting and much more.
The first blockchain was implemented by "Satoshi Nakamoto" in 2009 as a core component of Bitcoin where it serves as the public ledger for all transactions.
What's the BEST blockchain? STEEM is!!! With a transaction time of 3 seconds it's surpassing the others by (non-literal) light years!