(channel
 (version 0)
 (dependencies
  (channel
   (name guix-past)
   (url "https://gitlab.inria.fr/guix-hpc/guix-past")
   (introduction
    (channel-introduction
     (version 0)
     (commit "0c119db2ea86a389769f4d2b9c6f5c41c027e336")
     (signer
      "3CE4 6455 8A84 FDC6 9DB4  0CFB 090B 1199 3D9A EBB5"))))
  (channel
   (name guix)
   (url "https://git.savannah.gnu.org/git/guix.git")
   (branch "master")
   (commit "58233e6c21307be41e0636de61960e9376d3d82e")
   (introduction
    (channel-introduction
     (version 0)
     (commit "9edb3f66fd807b096b48283debdcddccfea34bad")
     (signer
      "BBB0 2DDF 2CEA F6A8 0D1D  E643 A2A0 6DF2 A33A 54FA"))))))