# ChainID 138 Blockscout Integration Summary

**Date**: $(date)  
**Purpose**: Summary of Blockscout integration and configuration for ChainID 138  
**Status**: ✅ Complete

---

## Overview

ChainID 138 uses **Blockscout** (self-hosted) as its block explorer. This document summarizes all Blockscout-related configurations and documentation updates.

---

## ✅ Completed Updates

### 1. API Keys Documentation

**File**: `docs/CROSS_CHAIN_BRIDGE_ADDRESSES.md`

- ✅ Added ChainID 138 (Blockscout) to the API Keys section
- ✅ Included Blockscout URL: `https://explorer.d-bis.org`
- ✅ Added API endpoint: `https://explorer.d-bis.org/api`
- ✅ Noted that no API key is required (self-hosted instance)
- ✅ Added reference to verification guide

### 2. Contract Verification Guide

**File**: `docs/BLOCKSCOUT_VERIFICATION_GUIDE.md` (NEW)

- ✅ Created comprehensive Blockscout verification guide
- ✅ Documented verification methods (Foundry script, manual, foundry.toml)
- ✅ Included verification examples with constructor arguments
- ✅ Added troubleshooting section
- ✅ Documented manual verification via Blockscout UI

### 3. Deployment Documentation Updates

**File**: `docs/CONTRACT_DEPLOYMENT_GUIDE.md`

- ✅ Updated deployment examples with Blockscout verification flags
- ✅ Added proper `--verifier blockscout` and `--verifier-url` flags
- ✅ Clarified Blockscout verification requirements

**File**: `docs/SOURCE_PROJECT_CONTRACT_DEPLOYMENT_INFO.md`

- ✅ Updated Foundry configuration notes
- ✅ Clarified Blockscout usage instead of Etherscan
- ✅ Added verification command examples

---

## 📋 Configuration Details

### Block Explorer Information

- **Name**: Blockscout (Self-hosted)
- **URL**: `https://explorer.d-bis.org`
- **API Endpoint**: `https://explorer.d-bis.org/api`
- **Chain ID**: 138
- **API Key**: Not required

### Foundry Verification Configuration

For Foundry contract verification, use:

```bash
--verifier blockscout --verifier-url https://explorer.d-bis.org/api
```

Or configure in `foundry.toml`:

```toml
[etherscan]
chain138 = { 
  url = "https://explorer.d-bis.org/api",
  verifier = "blockscout"
}
```

---

## 🔗 Related Documentation

### Primary References

1. **Blockscout Verification Guide**: `docs/BLOCKSCOUT_VERIFICATION_GUIDE.md`
   - Complete guide for verifying contracts on ChainID 138
   - Verification methods and examples
   - Troubleshooting tips

2. **Cross-Chain Bridge Addresses**: `docs/CROSS_CHAIN_BRIDGE_ADDRESSES.md`
   - API Keys section includes ChainID 138 Blockscout info
   - Reference to verification guide

3. **Contract Deployment Guide**: `docs/CONTRACT_DEPLOYMENT_GUIDE.md`
   - Updated with Blockscout verification examples

4. **Source Project Deployment Info**: `docs/SOURCE_PROJECT_CONTRACT_DEPLOYMENT_INFO.md`
   - Foundry configuration notes
   - Blockscout verification setup

---

## 📝 Quick Reference

### Verify Contract After Deployment

```bash
forge verify-contract \
  <CONTRACT_ADDRESS> \
  <CONTRACT_NAME> \
  --chain-id 138 \
  --rpc-url https://rpc-core.d-bis.org \
  --verifier blockscout \
  --verifier-url https://explorer.d-bis.org/api \
  --compiler-version <VERSION>
```

### View Contract on Explorer

- **Contract Page**: `https://explorer.d-bis.org/address/<CONTRACT_ADDRESS>`
- **Manual Verification**: Navigate to contract → "Verify & Publish" tab

### Blockscout API Endpoints

- **API Base**: `https://explorer.d-bis.org/api`
- **Contract Info**: `GET /api/v2/smart-contracts/<ADDRESS>`
- **Verification**: `POST /api/v2/smart-contracts/<ADDRESS>/verification`

---

## 🎯 Next Steps

With Blockscout integration complete:

1. ✅ **Documentation**: All Blockscout-related documentation updated
2. ✅ **Verification Guide**: Comprehensive guide created
3. ✅ **API Keys**: ChainID 138 added to API keys section
4. ✅ **Deployment Examples**: Updated with Blockscout verification

**Ready for contract deployment and verification on ChainID 138!**

---

## 📚 Additional Resources

- **Blockscout Documentation**: https://docs.blockscout.com/
- **Foundry Verification**: https://book.getfoundry.sh/reference/forge/forge-verify-contract
- **ChainID 138 RPC**: `https://rpc-core.d-bis.org`

---

**Last Updated**: $(date)  
**Status**: ✅ All Blockscout integration tasks complete

