Each Bitcoin block generates a random hash. Random-art.org generates random art. This piece of art combines the two and is 1-of-only-1. It was created (and can be replicated) at random-art.org/online by entering the following BTC block number, hyphen, hash: 679778-00000000000000000008cb676ef4b1d3c5f5911eb6c9b632cf2f7becd895e65a