a system that link blocks of data using their hash
Hashes are cryptographic codes created by special algorithms.
data: Epstein didn't kill himself
previous hash: 0000
data: Area 51 contains cat girls
previous hash: d11f69bfc9457b4b768511c73fec8e3fd240aec47e36088ed4416dbc86554505
data: Antarctica is where they store the aliens
previous hash:
9c6bab6c7bc1f7f63a2631eab2caae78f9df0eed0d5f2dbe123649454872f4bf
remember this?
data: Antarctica is where they store the aliens
previous hash:
9c6bab6c7bc1f7f63a2631eab2caae78f9df0eed0d5f2dbe123649454872f4bf
now you need to answer a quiz to submit the block
data: Antarctica is where they store the aliens
quiz-answer: 12312
previous hash:
9c6bab6c7bc1f7f63a2631eab2caae78f9df0eed0d5f2dbe123649454872f4bf
to answer the quiz, is to find what alphanumeric combination to produce the hash with n-zeros in front
demo 2: https://xorbin.com/tools/sha256-hash-calculator
data: Antarctica is where they store the aliens
quiz-answer: 12312
previous hash:
9c6bab6c7bc1f7f63a2631eab2caae78f9df0eed0d5f2dbe123649454872f4bf
demo 3: https://xorbin.com/tools/sha256-hash-calculator
hunter2
https://security.blogoverflow.com/2011/11/why-passwords-should-be-hashed/