# Imaginons un client autonome sans ordi/smartphone

**URL:** https://forum.duniter.org/t/imaginons-un-client-autonome-sans-ordi-smartphone/7850
**Category:** Applications
**Created:** [14 December 2020 09:23 UTC](https://forum.duniter.org/t/imaginons-un-client-autonome-sans-ordi-smartphone/7850 "2020-12-14T09:23:25Z")
**Posts on this page:** 1
**Showing post:** 5

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### Author: ![elois](https://forum.duniter.org/user_avatar/forum.duniter.org/elois/32/1541_2.png) [@elois](https://forum.duniter.org/u/elois)
#### Post date: [14 December 2020 16:16 UTC](https://forum.duniter.org/t/imaginons-un-client-autonome-sans-ordi-smartphone/7850/5 "2020-12-14T16:16:29Z")

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> [@Spencer](#):
>
> A normal unsigned tx with one input and 2 outputs (one for change) comes in under 430 bytes and the bottom signature adds another 90bytes.

A “normal” transaction will most of the time have much more than one input, unless the amount sent is ridiculously small. It is rather necessary to start on 1Kb the transaction, counting in addition the «change» transactions, a hardware dot being able to store at least a few tens of Kb otherwise it is unusable in practice.

> [@Spencer](#):
>
> I suspect that Elois is going to make this even simpler with the GVA

It’s already done:

> [@Paiement simplifié avec GVA: génération du document transaction coté serveur](https://forum.duniter.org/t/paiement-simplifie-avec-gva-generation-du-document-transaction-cote-serveur/7754):
>
> J’ai ajout…

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