# Become a Validator

## Overview

MAP Protocol uses Proof of Stake (POS) consensus. Validators secure the network by:

* Staking at least 1,000,000 MAP tokens
* Running a validator node to produce and validate blocks
* Earning rewards based on votes received

## Prerequisites

### Hardware Requirements

| Component | Requirement                            |
| --------- | -------------------------------------- |
| CPU       | Quad core 2.5 GHz (64-bit)             |
| RAM       | 16 GB                                  |
| Storage   | 256 GB SSD + secondary HDD             |
| Network   | 100 Mb/s, fiber connection recommended |

### Software Requirements

* Go 1.14 or later
* Git
* C compiler

### MAP Tokens

Your account needs at least **1,000,000 MAP** for staking.

## Build Tools

```bash
# Clone repository
git clone https://github.com/mapprotocol/atlas.git
cd atlas

# Build atlas and marker
make atlas
make marker
```

## Prepare Accounts

You need two accounts:

| Account | Purpose                   | File         |
| ------- | ------------------------- | ------------ |
| Account | Staking, receives rewards | account.json |
| Signer  | Signs blocks              | signer.json  |

### Generate Keystore

```bash
./atlas account new --keystore ./datadir/keystore
```

Or import existing private key:

```bash
./atlas --dataDir "./data" console
> web3.personal.importRawKey("your_private_key", "your_password")
```

## Start Validator Node

```bash
./atlas --datadir ./node \
  --syncmode "full" \
  --port 30321 \
  --v5disc \
  --mine \
  --miner.validator <SIGNER_ADDRESS> \
  --unlock <SIGNER_ADDRESS>
```

Wait for the node to sync with the network.

## Register as Validator

### Step 1: Create Account

Register your account with the management contract:

```bash
./marker createAccount \
  --rpcaddr http://127.0.0.1:7445 \
  --keystore ./account.json \
  --name "validator"
```

### Step 2: Authorize Signer

Authorize the signer address to sign blocks on behalf of your account:

```bash
./marker authorizeValidatorSigner \
  --rpcaddr http://127.0.0.1:7445 \
  --keystore ./account.json \
  --signerPriv <SIGNER_PRIVATE_KEY>
```

### Step 3: Lock MAP

Lock at least 1,000,000 MAP:

```bash
./marker lockedMAP \
  --rpcaddr http://127.0.0.1:7445 \
  --keystore ./account.json \
  --lockedNum 1000000
```

### Step 4: Register Validator

```bash
./marker register \
  --rpcaddr http://127.0.0.1:7445 \
  --keystore ./account.json \
  --signerPriv <SIGNER_PRIVATE_KEY> \
  --commission 150000
```

### Step 5: Vote for Yourself

Validators need votes to be elected. Vote for yourself:

```bash
./marker vote \
  --rpcaddr http://127.0.0.1:7445 \
  --keystore ./account.json \
  --target <YOUR_ACCOUNT_ADDRESS> \
  --voteNum 1000000
```

## Verify Registration

Check if you're registered as a validator:

```bash
./marker getTotalVotesForEligibleValidators --rpcaddr http://127.0.0.1:7445
```

Check if you're in the active validator set (after next epoch):

```bash
curl -X POST -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"istanbul_getValidators","params":[],"id":1}' \
  http://127.0.0.1:7445
```

***

## Advanced: Signature Separation

For enhanced security, you can separate the signing process from registration. This keeps your signer's private key more secure.

### Generate ECDSA Signature

```bash
./marker makeECDSASignatureFromSigner \
  --target <ACCOUNT_ADDRESS> \
  --signerPriv <SIGNER_PRIVATE_KEY>
```

Save the output signature (e.g., `0x59dff185...32f0d700`).

### Authorize by Signature

```bash
./marker authorizeValidatorSignerBySignature \
  --rpcaddr http://127.0.0.1:7445 \
  --keystore ./account.json \
  --signer <SIGNER_ADDRESS> \
  --signature <SIGNATURE_FROM_ABOVE>
```

### Generate Signer Proof

```bash
./marker generateSignerProof \
  --validator <ACCOUNT_ADDRESS> \
  --signerPriv <SIGNER_PRIVATE_KEY>
```

Save the output proof (e.g., `0xf90149b8...0e56f0ab1`).

### Register by Proof

```bash
./marker registerByProof \
  --rpcaddr http://127.0.0.1:7445 \
  --keystore ./account.json \
  --proof <PROOF_FROM_ABOVE> \
  --commission 150000
```

## Related

* [Voting & Withdrawal](https://docs.mapprotocol.io/validator/vote)
* [Marker Tool](https://docs.mapprotocol.io/validator/marker-tool/overview)
* [Network Info](https://docs.mapprotocol.io/network/relay-chain)