cryptocurrency
blockchain
A distributed digital ledger that records transactions across many computers so that records cannot be altered retroactively.
Example
"Bitcoin uses blockchain technology to ensure that every transaction is permanently and publicly recorded."
💡 Memory Tip
Literally a CHAIN of BLOCKS — each block of transactions is chained to the previous one.
Etymology
Compound of 'block' (a group of transactions) and 'chain' (linked together in sequence).
Common Misspellings
block chainblockchianblockchanblochchain
Related Terms
See Also
ledger