That long string of characters in a transaction hash (TxID)—where exactly does it come from?
First, the definition: SHA-256 outputs a fixed 256 bits, which is 64 characters when written in hexadecimal.
The principle: hashing is not encryption. Encrypted data can be restored using a key, but hashing is one-way—you can’t recover the original content from the hash value.
The essence of mining $BTC is repeatedly calculating SHA-256 hashes to find a result that meets the difficulty requirements. Current price: 75928.69.
There’s no shame in playing it safe; staying in the game matters more than making more in one go.
#BTC
First, the definition: SHA-256 outputs a fixed 256 bits, which is 64 characters when written in hexadecimal.
The principle: hashing is not encryption. Encrypted data can be restored using a key, but hashing is one-way—you can’t recover the original content from the hash value.
The essence of mining $BTC is repeatedly calculating SHA-256 hashes to find a result that meets the difficulty requirements. Current price: 75928.69.
There’s no shame in playing it safe; staying in the game matters more than making more in one go.
#BTC