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Arthur’s Neuron (used to be cycle_dao)

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John Wiegley

## Proposal to Upgrade the Cycles Ledger Canister
##### Proposer: DFINITY Foundation
##### Repository: http://github.com/dfinity/cycles-ledger
##### Git Hash: `121f9cb9036b5587483ca3148c78ce38f5e69f9c`
##### Compressed Wasm Hash: `ff27f2974d8dc6191d44c4a6cd2f969fce0f4e7543a080350ddf4f07c79f96cd`
##### Argument Hex: `4449444c0000`
##### Target canister: `um5iw-rqaaa-aaaaq-qaaba-cai`

---

## Motivation

Update the Cycles Ledger Canister to include the latest code changes:
* Added the logo to the metadata value `icrc1:logo`.
* Fixed a bug where the cycles ledger took control over a newly created canister if `creation_args` is `Some` and `canister_settings` is `None`.

## Wasm Verification

Verify that the hash of the gzipped WASM matches the proposed hash.

```bash
git clone git@github.com:dfinity/cycles-ledger.git
cd cycles-ledger
git checkout 121f9cb9036b5587483ca3148c78ce38f5e69f9c
./scripts/docker-build
sha256sum cycles-ledger.wasm.gz
```

## Argument Verification

```bash
didc encode -f hex '()'
```


Upgrade Nns Canister: um5iw-rqaaa-aaaaq-qaaba-cai to wasm with hash: ff27f2974d8dc6191d44c4a6cd2f969fce0f4e7543a080350ddf4f07c79f96cd