Subject: Re: [bitcoin-dev] Using a storage engine without UTXO-index

From: Tom Harding <[email-masked]>
Date: Fri, 7 Apr 2017 11:52:20 -0700

On Apr 6, 2017 6:31 PM, "Tomas via bitcoin-dev" <
[email-masked]> wrote:

Bitcrust just uses a *transaction-index*, where outputs can be looked up
regardless of being spent.

A network in which many nodes maintain a transaction index also enables a
class of light node applications that ask peers to prove existence and
spentness of TXO's.