# Some old slide decks on approval-checking and disputes

**URL:** <https://forum.polkadot.network/t/some-old-slide-decks-on-approval-checking-and-disputes/2168>\
**Category:** Tech Talk\
**Created:** [March 1, 2023, 8:53pm UTC](https://forum.polkadot.network/t/some-old-slide-decks-on-approval-checking-and-disputes/2168 "2023-03-01T20:53:58Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![rphmeier](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.polkadot.network/rphmeier/32/126_2.png) [@rphmeier](https://forum.polkadot.network/u/rphmeier)\
**Post date:** [March 1, 2023, 8:53pm UTC](https://forum.polkadot.network/t/some-old-slide-decks-on-approval-checking-and-disputes/2168/1 "2023-03-01T20:53:58Z")

</div>

I made some internal to Parity presentations in 2021 about Polkadot’s approval-voting and disputes protocols for security and will share the links here.

> **[Approval Checking](https://docs.google.com/presentation/d/1fjiTeT33GpxeM9TyBvxFnSVYR9NiU9SrkA2RBxSL5k8/edit?usp=sharing)**
>
> Approval Checking Off-chain Security for Parachains

> **[Disputes](https://docs.google.com/presentation/d/1n7zMmo4YuIL9ELM7LVbME1rNO3prvtFYyJ99EtDOPc8/edit?usp=sharing)**
>
> Disputes Accountability for Parachains