How Bitcoin mining actually works – What is the “cryptographic puzzle” that is being solved? (video) Posted on February 4, 2017 by 247 BTC 247 BTC Bitcoin News Search 1 News - 247 News - 247 Bitcoin - 1 Search Search for: submitted by /u/kwise [link] [comments] 247 BTC Bitcoin News Search 1 News - 247 News - 247 Bitcoin - 1 Search Search for: