{"type":"rich","version":1.0,"title":"bitcoin majority hashrate attack simulation","width":2305,"html":"<a href=\"https://asciinema.org/a/555310\" target=\"_blank\"><img src=\"https://asciinema.org/a/555310.png\" alt=\"bitcoin majority hashrate attack simulation\" width=\"2305\"></a>","height":664,"author_name":"zpfvo","author_url":"https://asciinema.org/~zpfvo","provider_name":"asciinema","provider_url":"https://asciinema.org/","thumbnail_height":664,"thumbnail_url":"https://asciinema.org/a/555310.png","thumbnail_width":2305}