# LeapDAO EF grant Tranche 2

*21.11.2019* — Got 57,425 DAI [tx](https://etherscan.io/tx/0x1125cc018a2ce2ea81704e371ab563ed4df0385383fd6a6e49d710578d4d34a1)
*24.04.2020* — Balance left 24,454 DAI

## Spending breakdown

| | |
| ---------------------:| --------- |
| Core Development | 20000 DAI |
| Network operations | 1928 DAI |
| Ecosystem development | 5265 DAI |
| General spendings | 5778 DAI |
| | |
| **Total** | 32971 DAI |

## What was done on core development side

### Single Operator Plasma Leap Chain
[scope details](https://hackmd.io/u1EIrnj_RgaJiGJlDpD-cQ)

- 🤷‍♂️ Watch-tower that monitors all exits from the Plasma chain:
- ✅ challenge invalid exits of transfer UTXOs
- ❌ challenge invalid computation
- 🤷‍♂️ SolEVM integration with Plasma:
- ✅ execution environment understands Leap tx structure
- ❌ exit game for computation tx

### PoS Plasma Leap Chain
[scope details](https://hackmd.io/gtviMVYsTBK7ULVnuno91g#Proof-of-Stake-Plasma-Leap-Chain)

- ✅ added Validator heartbeats ([description](https://docs.leapdao.org/validators/operations/))
- ✅ improving stability of multivalidator setup

## Network Operations

- ✅ Testnet upgraded to use multiple PoA operators with Cryptoeconomic Aggregate Signatures ([blog post](https://ipfs.leapdao.org/blog/cas))

## Ecosystem

JB talks