Technical principles | What exactly is a hash, and why does blockchain depend on it?
With a secure hash function, it is nearly impossible to recover the original input from its hash, and nearly impossible to find two different inputs that produce the same hash.
Hashing is not encryption: encrypted data can be restored with a key, but hashing is one-way, so the original content cannot be recovered from the hash.
Mining $BTC essentially means continually calculating SHA-256 hashes to find a result that meets the difficulty requirement. The current price is 82322.51.
Cross-check information from multiple sources before taking action; don’t just listen to one person.
Just a quick note—make your own decisions about buying and selling.
With a secure hash function, it is nearly impossible to recover the original input from its hash, and nearly impossible to find two different inputs that produce the same hash.
Hashing is not encryption: encrypted data can be restored with a key, but hashing is one-way, so the original content cannot be recovered from the hash.
Mining $BTC essentially means continually calculating SHA-256 hashes to find a result that meets the difficulty requirement. The current price is 82322.51.
Cross-check information from multiple sources before taking action; don’t just listen to one person.
Just a quick note—make your own decisions about buying and selling.