What is it? What’s that?
Though some blockchains require permission to access, “open” blockchains like
those underlying Bitcoin and Ethereum
are accessible to anyone, meaning the
database is public information.
It’s next to impossible for bad actors
to tamper with data encoded in a blockchain, if it’s properly set up.
Old transactions can’t be changed in
a properly functioning blockchain; only
new ones can be added.
No single entity owns or controls a public blockchain. A network of computers
maintains and secures the database, and
each participant, or “node,” stores a copy.
The original blockchain, Bitcoin, is a ledger for tracking currency balances. But
the same basic method can work for all
kinds of digital assets.
A mathematical structure
for storing data in a way that
is nearly impossible to fake.
It can be used for all kinds of
By MIKE ORCUT T