# Argument-0005: Retention at Rank 2

|                 |                                                                                             |
| --------------- | ------------------------------------------------------------------------------------------- |
| **Report Date** | Date of submission (2025/09/18)                                                             |
| **Submitted by**| Tsvetomir Dimitrov                                                                        |


## Member details

- Matrix username: @tsvetomir:parity.io
- Polkadot address: 1QhVP5qzR2LfXqP77N1JcuwHoY7NH8JVRNFm1hSooE9d4pR
- Current rank: 2
- Date of initial induction: 2023/10/11
- Date of last report: 2025/07/02
- Area(s) of Expertise/Interest: Disputes, Collator protocol


## Reporting period

- Start date: 2025/07/03
- End date: 2025/09/18


## Argument

During the reporting period my focus was the collator protocol stop-gap solution for the AssetHub
migration on Kusama (and Polkadot). Since we had not enough time to deliver the full protocol revamp
we agreed on a simpler and faster solution which despite not perfect will improve the resilience.
The [polkadot-sdk pr-9458](https://github.com/paritytech/polkadot-sdk/pull/9458) is complete but
still pending code reviews. In the description there are more details about the solution.

Currently I am working on a test tool which will simulate different scenarios so that we can test
the stop gap solution even further.

I was also assisting with the
[Kusama relay chain stall on August 24th](https://forum.polkadot.network/t/2025-08-24-kusama-stall-postmortem/14729).

Another task I did was a small cleanup of the controlled validator indices change (please check my
previous retention document for details) -
[polkadot-sdk pr-8896](https://github.com/paritytech/polkadot-sdk/pull/8896).

## Voting record

|  Ranks | Activity thresholds | Agreement thresholds | Member's voting activities | Comments |
|---|---|---|---|---|
|I  |90%   |N/A   |   |  |
|II |80%   |N/A   | I have voted on 0 out of 0 referenda in which I was eligible to vote (i.e 100 % voting activity). Out of 0 referenda in which members of higher ranks were in complete agreement, I have voted in line with the consensus 0 times (i.e 100 % voting agreement). | There were no referendas I could participate in during the reporting period |
|III|70%   |100%  |   |  |
|IV |60%   |90%   |   |  |
|V  |50%   |80%   |   |  |
|VI |40%   |70%   |   |  |


## Misc

- [ ] Question(s):

- [ ] Concern(s):

- [ ] Comment(s):