#plasma $XPL
Billions of dollars move across blockchain networks every second, protected by something you can't see, touch, or break: the blockchain hash.
Think of a hash as an unbreakable digital seal. It's a unique 64-character fingerprint created from any piece of data—a transaction, a document, even an entire book. Here's the mind-blowing part: change just one comma in that data, and the entire hash transforms into something completely unrecognizable.
This is called the avalanche effect, and it's why blockchain is virtually tamper-proof.
Bitcoin uses SHA-256, which creates these mathematical fingerprints through an irreversible process. You can't work backwards from a hash to discover the original data—it's a one-way street. The same input always produces the same output, but reverse-engineering it? Mathematically impossible.
Every new block contains the previous block's hash, creating an unbreakable chain stretching back to the beginning. Want to alter a single transaction from years ago? You'd need to recalculate every block since then, faster than the entire network—an impossible feat.
This invisible mathematical magic is why you can trust blockchain with your money, your identity, and your digital future. The best security is the kind you never see.@Plasma