> For the complete documentation index, see [llms.txt](https://scdo-laboratory.gitbook.io/scdolab/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://scdo-laboratory.gitbook.io/scdolab/mining-and-nodes/pool.md).

# Project PPLNS pool

9Y9 PTY LTD, trading as SCDO Laboratory, runs a public PPLNS mining pool for Shard0 EVM. Every miner's hashrate, shares, blocks and payouts are public on <https://scdoscan.io/pool/>.

| Item           | Value                                                                             |
| -------------- | --------------------------------------------------------------------------------- |
| Stratum        | `stratum+tcp://82.223.19.88:3333`                                                 |
| Username       | Your SCDO address (`0x…` or `0x….rigname`)                                        |
| Example        | `rigel -a ethash -o ethproxy+tcp://82.223.19.88:3333 -u 0xYOUR_ADDRESS -w rig1`   |
| Payout scheme  | PPLNS: each block reward is shared over the last 1 G of accepted share difficulty |
| Minimum payout | 1 SCDO, after 64 blocks of maturity; the pool pays the network fee                |
| Pool wallet    | `0x675E8639A73ECFe13561DbABc25e56CB82088D24`                                      |

## Fees

The fee depends on your 24-hour average hashrate. All fees go to the reserve address `0x42c4854A51127f2D9D770f0d4AECa0683f72c0e4`.

| Tier   | 24 h average hashrate | Fee |
| ------ | --------------------- | --- |
| Large  | ≥ 500 MH/s            | 1%  |
| Medium | 100–500 MH/s          | 3%  |
| Small  | < 100 MH/s            | 5%  |

Solo mining with your own node remains fully supported and has no pool fee.

The design and simulation of this pool are described in the paper [Hashrate-Tiered Fees and PPLNS Settlement for Home-Miner Pools](/scdolab/research/papers.md#mining-pools).