contract Rubicon =
    // record rbx =
    //     {ip       : string,
    //      port     : int,
    //      protocol : string,    // "tcp", "udp", "sctp", etc
    //      noise    : string,    // Noise_Foo_Bar_Baz_Quux
    //      pubkey   : address,   // responder static pubkey (noise: rs field)
    //      prologue : bytes}     // noise prologue (empty = no prologue)

    // (ip, port, protocol, noise, pubkey, prologue)
    type rbx_tuple = string * int * string * string * address * bytes
    type state = list(rbx_tuple)

    entrypoint init(tuples: list(rbx_tuple)): state =
        tuples

    stateful entrypoint set(tuples: list(rbx_tuple)): unit =
        // this would be nice
        // but unfortunately nobody knows how to do this
        // require(Call.caller == Contract.creator, "Not allowed")
        put(tuples)

    entrypoint lookup(): list(rbx_tuple) =
        state