# Evidence-0002: Retention at Rank II

|                  |                      |
| ---------------- | ---------------------|
| **Report Date**  | 2024/08/20           |
| **Submitted by** | Davide Galassi       |


## Member details

- Matrix username: @davxy:matrix.org
- Polkadot address: 16Q4qkRcWd4r8196dVGNLYVfy7H86MJYJBMockPaMigFXCyv
- Current rank: 2
- Date of initial induction: 2024/01/08
- Date of last report: 2024/05/04
- Area(s) of Expertise/Interest: Consensus Protocols, Applied Cryptography


## Reporting period

- Start date: 2024/06/15
- End date: 2024/09/15


## Evidence

### JAM

As a member of Parity's *PolkaJam* team, I've been heavily involved in the
development of Parity's JAM prototype. This also includes refining auxiliary
specifications and generating test vectors essential for achieving our interoperability
goals across all [JAM teams](https://graypaper.com/clients/).

- Proposed [test vectors](https://github.com/w3f/jamtestvectors/pulls?q=type%3Apr+author%3Adavxy++Safrole++in%3Atitle) for the *Safrole* subsystem STF.
- Proposed [test vectors](https://github.com/w3f/jamtestvectors/pull/9) for the *Disputes* subsystem STF.

### Crypto Primitives

Together with the W3F research team, I contributed to the development of a formal
[Ring-Proof specification](https://github.com/davxy/ring-proof-spec) to address gaps
left by the [Bandersnatch VRFs specification](https://github.com/davxy/bandersnatch-vrfs-spec),
particularly regarding the ring-proof details, which were previously left open.

After stabilizing the Bandersnatch VRFs formal specification, I contributed to
the development of the [test vectors](https://github.com/davxy/bandersnatch-vrfs-spec/tree/main/vectors)
for both the IETF and Ring VRFs, which are utilized across our future applications.

### Polkadot-SDK

The Sassafras FRAME code has been finalized and is currently pending review:
[SDK 4373](https://github.com/paritytech/polkadot-sdk/pull/4373).

### RFCs

Successfully merged Sassafras [RFC 26](https://github.com/polkadot-fellows/RFCs/pull/26),
which will be instrumental for future parachains that plan to integrate this new consensus protocol.

### Support and Collaboration

- Reviews of Polkadot-SDK pull requests, particularly those within my area of expertise or submitted by the Node SDK team.
  - [Recap](https://github.com/paritytech/polkadot-sdk/pulls?q=is%3Apr+reviewed-by%3Adavxy)

## Voting record

|  Ranks | Activity thresholds | Agreement thresholds | Member's voting activities | Comments |
|---|---|---|---|---|
|I  |90%   |N/A   |   |  |
|II |80%   |N/A   | I have voted on 2 out of 2 referenda in which I was eligible to vote during this reporting period (i.e 100% voting activity). Out of 2 referenda in which members of higher ranks were in complete agreement, I have voted in line with the consensus 2 times (i.e 100 % voting agreement). | [ref 103](https://collectives.subsquare.io/fellowship/referenda/103) and [ref 131](https://collectives.subsquare.io/fellowship/referenda/131) |
|III|70%   |100%  |   |  |
|IV |60%   |90%   |   |  |
|V  |50%   |80%   |   |  |
|VI |40%   |70%   |   |  |


## Misc

- [ ] Question(s): 

- [ ] Concern(s): 

- [ ] Comment(s):