ligo/vendors/ligo-utils/tezos-protocol-alpha/state_hash.ml

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let random_state_hash = "\076\064\204" (* rng(53): never used... *)

include Blake2B.Make
          (Base58)
          (struct
            let name = "random"

            let title = "A random generation state"

            let b58check_prefix = random_state_hash

            let size = None
          end)

let () = Base58.check_encoded_prefix b58check_encoding "rng" 53