(list
  (channel
    (name 'gn-bioinformatics)
    (url "http://git.genenetwork.org/guix-bioinformatics/guix-bioinformatics")
    (commit
     "90b466488a778cfea3693fb2157c58377849f4a6"))
  (channel
    (name 'guix)
    (url "https://git.savannah.gnu.org/git/guix.git")
    (commit
      "2ca982ff41270288913ad6b7d5d9e1cad87b06d9")
    (introduction
      (make-channel-introduction
	"9edb3f66fd807b096b48283debdcddccfea34bad"
	(openpgp-fingerprint
	  "BBB0 2DDF 2CEA F6A8 0D1D  E643 A2A0 6DF2 A33A 54FA")))))