From ZmnSCPxj at protonmail.com  Tue May  1 05:07:54 2018
From: ZmnSCPxj at protonmail.com (ZmnSCPxj)
Date: Tue, 01 May 2018 01:07:54 -0400
Subject: [Lightning-dev] eltoo: A Simplified update Mechanism for
	Lightning and Off-Chain Contracts
In-Reply-To: <874ljsitvx.fsf@gmail.com>
References: <874ljsitvx.fsf@gmail.com>
Message-ID: <9OOOx7l1TdSQBlgt0MuRvtKzuxa_Z3g0kF315Legl5L-UOvvNZFL_tgAuWhe015Q-ZtOdYfI9iGJkAqhfb42RqazYq0JvTCzXaEr1XkD_iY=@protonmail.com>

Good morning Christian,

This is very interesting indeed!

I have started skimming through the paper.

I am uncertain if the below text is correct?

> Throughout this paper we will use the terms *input script* to refer to `witnessProgram` and `scriptPubKey`, and *output script* to refer to the `witness` or `scriptSig`.

Figure 2 contains to what looks to me like a `witnessProgram`, `scriptPubKey`, or `redeemScript` but refers to it as an "output script":

>    OP_IF
>        10 OP_CSV
>        2 As Bs 2 OP_CHECKMULTISIGVERIFY
>    OP_ELSE
>        2 Au Bu 2 OP_CHECKMULTISIGVERIFY
>    OP_ENDIF
>
> Figure 2: The output script used by the on-chain update transactions.

Regards,
ZmnSCPxj