<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>gkfasdfasdf</author><text>After watching the latest Veritasium video about how Newton figured out a novel approach to solving PI which was dramatically simpler than the previous thousand-year old methods, I wonder if someone will come along and figure out a simple mathematical way to break these encryptions. That would be horrifying of course, but also really cool.</text><parent_chain></parent_chain></comment><story><title>Cryptography behind the top cryptocurrencies</title><url>http://ethanfast.com/top-crypto.html</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>nayuki</author><text>More cryptographic details: Bitcoin uses the SHA-256 and RIPEMD-160 hash functions for public keys. It uses double-SHA-256 for transaction IDs and blocks (mining).</text><parent_chain></parent_chain></comment><story><title>Cryptography behind the top cryptocurrencies</title><url>http://ethanfast.com/top-crypto.html</url></story>