# Evidence-0000: Retention at/Promotion to Rank ____
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| **Report Date** | 2024-04-23 |
| **Submitted by**| Oliver Tale-Yazdi |
## Member details
- Matrix username:
- Polkadot address: <a target='_blank' href='https://collectives.statescan.io/#/accounts/16a357f5Sxab3V2ne4emGQvqJaCLeYpTMx3TCjnQhmJQ71DX'>16a357f5..</a>
- Current rank: HUMBLE
- Date of initial induction: 2022/11/21
- Date of last report: None
- Area(s) of Expertise/Interest:
- `cross-chain message passing (XCMP, HRMP, DMP & UMP)`
- `the Polkadot business-logic (aka the 'runtime')`
- `pallets utilised by the Polkadot (Main) Network and its system chains`
- `the internals of the frame pallet framework`
- `runtime and host APIs`
- `standard RPCs`
## Reporting period
- Start date: 2024-01-01
- End date: 2024-04-23
## Evidence
| Areas of Contribution | Tasks | Links |Notes |
|---|---|---|---|
|Polkadot SDK | Specification & Implementation of Multi Block Migrations | [RFC 13](https://github.com/polkadot-fellows/RFCs/pull/13) & [SDK 1781](https://github.com/paritytech/polkadot-sdk/pull/1781) | *This is a 1st example.* |
|Roadmap/Vision | Speficication and implementation of Multi-Asset Sub-Treasuries | [Forum post](https://forum.polkadot.network/t/collective-based-multi-asset-treasuries/2899) & delivery of a [Polkadot Treasury acquisition of USDT and USDC](https://polkadot.subsquare.io/referenda/457), and a [Fellowship sub-treasury and Fellowship Salary account funding with USDT](https://collectives.subsquare.io/fellowship/salary). | *This is a 2nd example.* |
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## Misc
- [ ] Question(s):
- [ ] Concern(s):
- [ ] Comment(s):