rollup_getInfo

Get zkEVM rollup configuration on the Linea network. This method provides essential information about the zkEVM rollup parameters, settings, and operational details.

Overview

Linea zkEVM is a Layer 2 scaling solution that uses zero-knowledge proofs to provide high throughput while maintaining Ethereum's security. The rollup configuration includes important parameters for:

• Batch Processing: How transactions are batched and processed
• Proof Generation: Zero-knowledge proof parameters
• Bridge Operations: L1 ↔ L2 asset bridging configuration
• Network Parameters: Chain ID, block times, and operational settings

Parameters

This method typically takes no parameters, but implementation may vary. Please refer to the official Linea documentation for the most current parameter specifications.

Returns

Rollup configuration object containing comprehensive information about the zkEVM rollup setup.

Implementation Example

cURL

curl -X POST https://api-linea-mainnet-archive.n.dwellir.com/YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "rollup_getInfo",
    "params": [],
    "id": 1
  }'

JavaScript

const response = await fetch('https://api-linea-mainnet-archive.n.dwellir.com/YOUR_API_KEY', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    jsonrpc: '2.0',
    method: 'rollup_getInfo',
    params: [],
    id: 1
  })
});

const data = await response.json();
console.log('Rollup Info:', data.result);

// Advanced Linea zkEVM rollup information analyzer
class LineaRollupAnalyzer {
  constructor(rpcUrl) {
    this.rpcUrl = rpcUrl;
  }

  async getRollupInfo() {
    const response = await fetch(this.rpcUrl, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({
        jsonrpc: '2.0',
        method: 'rollup_getInfo',
        params: [],
        id: 1
      })
    });

    const data = await response.json();
    
    if (data.error) {
      throw new Error(`RPC Error: ${data.error.message}`);
    }

    return data.result;
  }

  async getComprehensiveRollupStatus() {
    try {
      // Get rollup info
      const rollupInfo = await this.getRollupInfo();
      
      // Get current chain info
      const chainIdResponse = await fetch(this.rpcUrl, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({
          jsonrpc: '2.0',
          method: 'eth_chainId',
          params: [],
          id: 1
        })
      });

      const chainData = await chainIdResponse.json();
      const chainId = parseInt(chainData.result, 16);

      // Get latest block info
      const blockResponse = await fetch(this.rpcUrl, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({
          jsonrpc: '2.0',
          method: 'eth_getBlockByNumber',
          params: ['latest', false],
          id: 1
        })
      });

      const blockData = await blockResponse.json();
      const latestBlock = blockData.result;

      return {
        timestamp: new Date().toISOString(),
        network: {
          name: 'Linea',
          chainId: chainId,
          type: 'zkEVM'
        },
        rollupConfig: rollupInfo,
        currentState: {
          latestBlock: parseInt(latestBlock.number, 16),
          blockHash: latestBlock.hash,
          timestamp: parseInt(latestBlock.timestamp, 16),
          gasLimit: parseInt(latestBlock.gasLimit, 16),
          gasUsed: parseInt(latestBlock.gasUsed, 16),
          utilization: ((parseInt(latestBlock.gasUsed, 16) / parseInt(latestBlock.gasLimit, 16)) * 100).toFixed(2)
        },
        analysis: this.analyzeRollupConfig(rollupInfo, chainId)
      };
    } catch (error) {
      throw new Error(`Failed to get comprehensive status: ${error.message}`);
    }
  }

  analyzeRollupConfig(rollupInfo, chainId) {
    const analysis = {
      networkType: 'zkEVM Rollup',
      securityModel: 'Zero-Knowledge Proofs',
      dataAvailability: 'Ethereum L1',
      features: [],
      optimizations: [],
      considerations: []
    };

    // Analyze chain ID
    if (chainId === 59144) {
      analysis.features.push('Linea Mainnet');
      analysis.features.push('Production Network');
    } else if (chainId === 59140) {
      analysis.features.push('Linea Testnet');
      analysis.features.push('Development Network');
    }

    // General zkEVM features
    analysis.features.push('EVM Compatibility');
    analysis.features.push('Zero-Knowledge Proofs');
    analysis.features.push('L1 Data Availability');
    analysis.features.push('Ethereum Security');

    // Optimizations
    analysis.optimizations.push('High Throughput');
    analysis.optimizations.push('Low Transaction Costs');
    analysis.optimizations.push('Fast Finality');
    analysis.optimizations.push('Ethereum Virtual Machine Compatibility');

    // Considerations
    analysis.considerations.push('Proof Generation Time');
    analysis.considerations.push('L1 Data Posting Costs');
    analysis.considerations.push('Bridge Withdrawal Delays');

    return analysis;
  }

  async compareWithOtherL2s() {
    const lineaInfo = await this.getComprehensiveRollupStatus();
    
    // This would be expanded with actual data from other L2s
    const comparison = {
      linea: {
        type: 'zkEVM',
        proofSystem: 'Zero-Knowledge',
        evmCompatibility: 'Full',
        dataAvailability: 'On-chain (Ethereum L1)',
        finality: 'Probabilistic → Proven',
        withdrawalTime: '~7 days (pending finalization)',
        advantages: [
          'Full EVM compatibility',
          'Strong security guarantees',
          'No trust assumptions beyond Ethereum',
          'Privacy-preserving proofs'
        ]
      },
      optimisticRollups: {
        type: 'Optimistic',
        proofSystem: 'Fraud Proofs',
        evmCompatibility: 'Full',
        dataAvailability: 'On-chain (Ethereum L1)',
        finality: 'Optimistic → Proven',
        withdrawalTime: '~7 days (challenge period)',
        tradeoffs: [
          'Faster transaction processing',
          'Lower computational overhead',
          'Challenge period required',
          'Potential for fraud challenges'
        ]
      },
      comparison: {
        security: 'zkEVM provides stronger guarantees',
        performance: 'Similar transaction throughput',
        costs: 'Comparable transaction fees',
        devExperience: 'Both offer full EVM compatibility'
      }
    };

    return comparison;
  }

  async monitorRollupHealth() {
    const health = {
      timestamp: new Date().toISOString(),
      status: 'unknown',
      metrics: {},
      alerts: []
    };

    try {
      const status = await this.getComprehensiveRollupStatus();
      
      // Check basic connectivity and latest block
      const blockAge = Date.now() / 1000 - status.currentState.timestamp;
      
      health.metrics = {
        latestBlock: status.currentState.latestBlock,
        blockAge: blockAge,
        gasUtilization: parseFloat(status.currentState.utilization),
        chainId: status.network.chainId
      };

      // Health checks
      if (blockAge > 300) { // 5 minutes
        health.alerts.push({
          severity: 'warning',
          message: `Latest block is ${Math.floor(blockAge / 60)} minutes old`,
          recommendation: 'Check network connectivity and block production'
        });
      }

      if (health.metrics.gasUtilization > 90) {
        health.alerts.push({
          severity: 'info',
          message: `High gas utilization: ${health.metrics.gasUtilization}%`,
          recommendation: 'Network is experiencing high usage'
        });
      }

      health.status = health.alerts.length === 0 ? 'healthy' : 
                    health.alerts.some(a => a.severity === 'error') ? 'unhealthy' : 'warning';

    } catch (error) {
      health.status = 'error';
      health.alerts.push({
        severity: 'error',
        message: `Failed to get rollup status: ${error.message}`,
        recommendation: 'Check RPC endpoint connectivity'
      });
    }

    return health;
  }

  async getNetworkCapacityInfo() {
    try {
      const status = await this.getComprehensiveRollupStatus();
      
      const capacity = {
        current: {
          blockGasLimit: status.currentState.gasLimit,
          blockGasUsed: status.currentState.gasUsed,
          utilizationPercentage: parseFloat(status.currentState.utilization)
        },
        theoretical: {
          maxTxPerSecond: 0, // Would be calculated based on average gas per tx
          maxTxPerBlock: 0,
          avgBlockTime: 0 // Would need historical data
        },
        estimates: {
          simpleTransfers: Math.floor(status.currentState.gasLimit / 21000),
          erc20Transfers: Math.floor(status.currentState.gasLimit / 65000),
          complexContracts: Math.floor(status.currentState.gasLimit / 200000)
        }
      };

      return capacity;
    } catch (error) {
      throw new Error(`Failed to get capacity info: ${error.message}`);
    }
  }

  async analyzeUpgradeability() {
    const rollupInfo = await this.getRollupInfo();
    
    // This would analyze the actual rollup configuration
    // For demonstration, providing general zkEVM upgrade analysis
    return {
      upgradeType: 'Governed Upgrades',
      governanceModel: 'Multi-signature or DAO governance',
      upgradeProcess: [
        'Proposal submission',
        'Community review',
        'Governance voting',
        'Implementation timeline',
        'Upgrade execution'
      ],
      considerations: [
        'Proof system upgrades may require redeployment',
        'Smart contract upgrades follow standard patterns',
        'L1 contract upgrades need careful coordination',
        'Backward compatibility maintenance'
      ],
      riskMitigation: [
        'Extensive testing on testnets',
        'Gradual rollout procedures',
        'Emergency pause mechanisms',
        'Rollback capabilities where possible'
      ]
    };
  }

  async getBridgeInfo() {
    // This would integrate with bridge contracts
    // For demonstration, providing general bridge information
    return {
      bridgeType: 'Canonical Bridge',
      supportedAssets: [
        'ETH (Native)',
        'ERC-20 Tokens',
        'ERC-721 NFTs',
        'ERC-1155 Multi-tokens'
      ],
      bridgeProcess: {
        deposit: {
          timeToL2: '~15 minutes',
          steps: [
            'Lock tokens on L1',
            'Wait for L1 confirmation',
            'Mint on L2',
            'Tokens available on L2'
          ]
        },
        withdrawal: {
          timeToL1: '~7 days',
          steps: [
            'Burn tokens on L2',
            'Include in batch',
            'Generate proof',
            'Submit to L1',
            'Finalization period',
            'Claim on L1'
          ]
        }
      },
      security: {
        model: 'Cryptographic proofs',
        assumptions: 'Ethereum L1 security',
        risks: [
          'Smart contract bugs',
          'Proof system vulnerabilities',
          'Bridge implementation issues'
        ]
      }
    };
  }
}

// Usage examples
const rollupAnalyzer = new LineaRollupAnalyzer('https://api-linea-mainnet-archive.n.dwellir.com/YOUR_API_KEY');

// Get basic rollup info
const rollupInfo = await rollupAnalyzer.getRollupInfo();
console.log('Rollup Configuration:', rollupInfo);

// Get comprehensive status
const comprehensiveStatus = await rollupAnalyzer.getComprehensiveRollupStatus();
console.log('Network Status:', comprehensiveStatus);

// Monitor rollup health
const healthStatus = await rollupAnalyzer.monitorRollupHealth();
console.log('Health Status:', healthStatus.status);
console.log('Alerts:', healthStatus.alerts);

// Get network capacity info
const capacityInfo = await rollupAnalyzer.getNetworkCapacityInfo();
console.log('Network Capacity:', capacityInfo);

// Compare with other L2s
const comparison = await rollupAnalyzer.compareWithOtherL2s();
console.log('L2 Comparison:', comparison);

// Analyze upgradeability
const upgradeAnalysis = await rollupAnalyzer.analyzeUpgradeability();
console.log('Upgrade Model:', upgradeAnalysis);

// Get bridge information
const bridgeInfo = await rollupAnalyzer.getBridgeInfo();
console.log('Bridge Details:', bridgeInfo);

Python

import requests
import json
import time
from typing import Dict, List, Any, Optional
from datetime import datetime

class LineaRollupInfoAnalyzer:
    """Comprehensive analyzer for Linea zkEVM rollup information"""
    
    def __init__(self, rpc_url: str):
        self.rpc_url = rpc_url
    
    def get_rollup_info(self) -> Dict[str, Any]:
        """Get basic rollup configuration information"""
        
        payload = {
            "jsonrpc": "2.0",
            "method": "rollup_getInfo",
            "params": [],
            "id": 1
        }
        
        response = requests.post(self.rpc_url, json=payload)
        data = response.json()
        
        if 'error' in data:
            raise Exception(f"RPC Error: {data['error']['message']}")
        
        return data['result']
    
    def _make_rpc_call(self, method: str, params: List = None) -> Any:
        """Helper method for making RPC calls"""
        
        payload = {
            "jsonrpc": "2.0",
            "method": method,
            "params": params or [],
            "id": 1
        }
        
        response = requests.post(self.rpc_url, json=payload)
        data = response.json()
        
        if 'error' in data:
            raise Exception(f"RPC Error: {data['error']['message']}")
        
        return data['result']
    
    def get_comprehensive_rollup_status(self) -> Dict[str, Any]:
        """Get comprehensive rollup status and configuration"""
        
        rollup_info = self.get_rollup_info()
        
        # Get additional network information
        chain_id = int(self._make_rpc_call('eth_chainId'), 16)
        latest_block = self._make_rpc_call('eth_getBlockByNumber', ['latest', False])
        
        block_number = int(latest_block['number'], 16)
        block_timestamp = int(latest_block['timestamp'], 16)
        gas_limit = int(latest_block['gasLimit'], 16)
        gas_used = int(latest_block['gasUsed'], 16)
        
        return {
            'timestamp': datetime.now().isoformat(),
            'network_info': {
                'name': 'Linea',
                'chain_id': chain_id,
                'type': 'zkEVM',
                'consensus': 'Zero-Knowledge Proofs'
            },
            'rollup_config': rollup_info,
            'current_state': {
                'latest_block': block_number,
                'block_hash': latest_block['hash'],
                'block_timestamp': block_timestamp,
                'gas_limit': gas_limit,
                'gas_used': gas_used,
                'gas_utilization': round((gas_used / gas_limit) * 100, 2),
                'block_age_seconds': int(time.time()) - block_timestamp
            },
            'analysis': self._analyze_rollup_configuration(rollup_info, chain_id)
        }
    
    def _analyze_rollup_configuration(
        self, 
        rollup_info: Dict[str, Any], 
        chain_id: int
    ) -> Dict[str, Any]:
        """Analyze rollup configuration and provide insights"""
        
        analysis = {
            'rollup_type': 'zkEVM (Zero-Knowledge Ethereum Virtual Machine)',
            'security_model': 'Cryptographic proofs with L1 data availability',
            'key_features': [
                'Full EVM compatibility',
                'Zero-knowledge proof validation',
                'Ethereum L1 data availability',
                'Trustless withdrawals',
                'Privacy-preserving computations'
            ],
            'network_classification': 'Mainnet' if chain_id == 59144 else 'Testnet',
            'performance_characteristics': {
                'finality': 'Probabilistic then cryptographically proven',
                'withdrawal_time': '~7 days (proof generation + challenge period)',
                'throughput': 'High (limited by gas limit)',
                'costs': 'Low L2 execution + L1 data costs'
            }
        }
        
        # Add specific insights based on chain
        if chain_id == 59144:  # Linea Mainnet
            analysis['environment'] = 'Production'
            analysis['considerations'] = [
                'Real value at risk',
                'Production-grade security',
                'Full audit coverage',
                'Mainnet gas costs apply'
            ]
        elif chain_id == 59140:  # Linea Testnet
            analysis['environment'] = 'Testing'
            analysis['considerations'] = [
                'Testing and development use',
                'No real value',
                'Latest features may be experimental',
                'Network resets possible'
            ]
        
        return analysis
    
    def monitor_rollup_performance(self, duration_minutes: int = 10) -> Dict[str, Any]:
        """Monitor rollup performance over time"""
        
        monitoring_data = []
        start_time = datetime.now()
        
        print(f"Monitoring rollup for {duration_minutes} minutes...")
        
        try:
            while (datetime.now() - start_time).seconds < duration_minutes * 60:
                status = self.get_comprehensive_rollup_status()
                monitoring_data.append(status)
                
                print(f"Block: {status['current_state']['latest_block']}, "
                      f"Utilization: {status['current_state']['gas_utilization']}%")
                
                time.sleep(30)  # Check every 30 seconds
                
        except KeyboardInterrupt:
            print("Monitoring stopped by user")
        
        return self._analyze_performance_data(monitoring_data)
    
    def _analyze_performance_data(self, monitoring_data: List[Dict]) -> Dict[str, Any]:
        """Analyze collected performance data"""
        
        if not monitoring_data:
            return {'error': 'No monitoring data collected'}
        
        block_numbers = [d['current_state']['latest_block'] for d in monitoring_data]
        gas_utilizations = [d['current_state']['gas_utilization'] for d in monitoring_data]
        block_ages = [d['current_state']['block_age_seconds'] for d in monitoring_data]
        
        # Calculate block production rate
        if len(block_numbers) > 1:
            blocks_produced = block_numbers[-1] - block_numbers[0]
            time_elapsed = (
                datetime.fromisoformat(monitoring_data[-1]['timestamp']) -
                datetime.fromisoformat(monitoring_data[0]['timestamp'])
            ).seconds
            avg_block_time = time_elapsed / blocks_produced if blocks_produced > 0 else 0
        else:
            avg_block_time = 0
            blocks_produced = 0
        
        return {
            'monitoring_period': {
                'start': monitoring_data[0]['timestamp'],
                'end': monitoring_data[-1]['timestamp'],
                'data_points': len(monitoring_data)
            },
            'block_production': {
                'blocks_produced': blocks_produced,
                'average_block_time': round(avg_block_time, 2),
                'block_range': f"{block_numbers[0]} - {block_numbers[-1]}"
            },
            'gas_utilization': {
                'average': round(sum(gas_utilizations) / len(gas_utilizations), 2),
                'min': min(gas_utilizations),
                'max': max(gas_utilizations),
                'trend': self._calculate_trend(gas_utilizations)
            },
            'network_health': {
                'consistent_block_production': blocks_produced > 0,
                'average_block_age': round(sum(block_ages) / len(block_ages), 2),
                'health_score': self._calculate_health_score(monitoring_data)
            }
        }
    
    def _calculate_trend(self, values: List[float]) -> str:
        """Calculate trend direction for a series of values"""
        
        if len(values) < 2:
            return 'insufficient_data'
        
        first_half = values[:len(values)//2]
        second_half = values[len(values)//2:]
        
        first_avg = sum(first_half) / len(first_half)
        second_avg = sum(second_half) / len(second_half)
        
        change_pct = ((second_avg - first_avg) / first_avg) * 100 if first_avg > 0 else 0
        
        if change_pct > 5:
            return 'increasing'
        elif change_pct < -5:
            return 'decreasing'
        else:
            return 'stable'
    
    def _calculate_health_score(self, monitoring_data: List[Dict]) -> float:
        """Calculate a health score for the rollup"""
        
        score = 100.0
        
        # Check for stale blocks
        avg_block_age = sum(d['current_state']['block_age_seconds'] for d in monitoring_data) / len(monitoring_data)
        if avg_block_age > 300:  # 5 minutes
            score -= 20
        elif avg_block_age > 120:  # 2 minutes
            score -= 10
        
        # Check gas utilization patterns
        gas_utils = [d['current_state']['gas_utilization'] for d in monitoring_data]
        avg_util = sum(gas_utils) / len(gas_utils)
        
        if avg_util > 95:  # Very high utilization
            score -= 15
        elif avg_util < 5:  # Very low utilization (might indicate issues)
            score -= 10
        
        return max(0, score)
    
    def compare_with_ethereum_l1(self, eth_l1_rpc_url: str = None) -> Dict[str, Any]:
        """Compare Linea with Ethereum L1 characteristics"""
        
        linea_status = self.get_comprehensive_rollup_status()
        
        comparison = {
            'linea_zkevm': {
                'type': 'Layer 2 zkEVM',
                'consensus': 'Zero-Knowledge Proofs',
                'finality': 'Probabilistic → Proven',
                'block_time': '~12 seconds',
                'gas_limit': linea_status['current_state']['gas_limit'],
                'transaction_throughput': 'High',
                'transaction_costs': 'Low'
            },
            'ethereum_l1': {
                'type': 'Layer 1 Blockchain',
                'consensus': 'Proof of Stake',
                'finality': 'Probabilistic',
                'block_time': '~12 seconds',
                'gas_limit': '~30M gas',
                'transaction_throughput': 'Limited',
                'transaction_costs': 'High'
            },
            'advantages_linea': [
                'Lower transaction costs',
                'Higher throughput capacity',
                'EVM compatibility',
                'Inherits Ethereum security',
                'Privacy features via zk-proofs'
            ],
            'advantages_l1': [
                'No additional trust assumptions',
                'Direct composability',
                'Immediate finality',
                'No bridge requirements',
                'Maximum decentralization'
            ]
        }
        
        return comparison
    
    def analyze_upgradeability_governance(self) -> Dict[str, Any]:
        """Analyze upgradeability and governance mechanisms"""
        
        return {
            'upgrade_mechanism': 'Governed Smart Contracts',
            'governance_model': {
                'type': 'Multi-signature or DAO governance',
                'participants': [
                    'Core development team',
                    'Community stakeholders',
                    'Security auditors',
                    'Ecosystem partners'
                ]
            },
            'upgrade_process': {
                'steps': [
                    '1. Proposal creation and review',
                    '2. Community discussion period',
                    '3. Technical evaluation',
                    '4. Governance voting',
                    '5. Implementation timeline',
                    '6. Staged rollout',
                    '7. Post-upgrade monitoring'
                ],
                'timeframes': {
                    'discussion_period': '1-2 weeks',
                    'voting_period': '1 week',
                    'implementation_delay': '1-2 weeks',
                    'total_process': '4-6 weeks minimum'
                }
            },
            'risk_mitigation': [
                'Extensive testnet validation',
                'Audit requirements',
                'Emergency pause mechanisms',
                'Gradual feature activation',
                'Rollback procedures where possible'
            ],
            'recent_upgrades': 'Check governance forum for latest information'
        }
    
    def get_bridge_integration_info(self) -> Dict[str, Any]:
        """Get information about bridge integrations and interoperability"""
        
        return {
            'canonical_bridge': {
                'purpose': 'Official L1 ↔ L2 asset transfer',
                'supported_assets': [
                    'ETH (native Ether)',
                    'ERC-20 tokens',
                    'ERC-721 NFTs',
                    'ERC-1155 multi-tokens'
                ],
                'security_model': 'zkEVM proof validation'
            },
            'bridge_process': {
                'deposits_l1_to_l2': {
                    'time': '~15 minutes',
                    'process': [
                        'Lock assets on L1',
                        'Wait for L1 confirmation',
                        'Automatic minting on L2',
                        'Assets available on L2'
                    ]
                },
                'withdrawals_l2_to_l1': {
                    'time': '~7 days',
                    'process': [
                        'Burn assets on L2',
                        'Include in batch',
                        'Generate zk-proof',
                        'Submit proof to L1',
                        'Finalization period',
                        'Claim assets on L1'
                    ]
                }
            },
            'third_party_bridges': {
                'availability': 'Multiple third-party bridge providers',
                'considerations': [
                    'Different security models',
                    'Varying withdrawal times',
                    'Different supported assets',
                    'Additional trust assumptions'
                ]
            }
        }

# Usage examples
analyzer = LineaRollupInfoAnalyzer('https://api-linea-mainnet-archive.n.dwellir.com/YOUR_API_KEY')

# Get basic rollup information
rollup_info = analyzer.get_rollup_info()
print("Basic Rollup Info:", json.dumps(rollup_info, indent=2))

# Get comprehensive status
comprehensive_status = analyzer.get_comprehensive_rollup_status()
print(f"\nNetwork: {comprehensive_status['network_info']['name']}")
print(f"Chain ID: {comprehensive_status['network_info']['chain_id']}")
print(f"Latest Block: {comprehensive_status['current_state']['latest_block']}")
print(f"Gas Utilization: {comprehensive_status['current_state']['gas_utilization']}%")

# Analyze network type
analysis = comprehensive_status['analysis']
print(f"\nRollup Type: {analysis['rollup_type']}")
print(f"Environment: {analysis['environment']}")
print("Key Features:")
for feature in analysis['key_features']:
    print(f"  - {feature}")

# Monitor performance (short demo)
print("\nStarting performance monitoring...")
performance_data = analyzer.monitor_rollup_performance(duration_minutes=2)
print("Performance Analysis:")
print(f"  Average block time: {performance_data['block_production']['average_block_time']}s")
print(f"  Health score: {performance_data['network_health']['health_score']}/100")

# Compare with L1
comparison = analyzer.compare_with_ethereum_l1()
print("\nLinea Advantages:")
for advantage in comparison['advantages_linea']:
    print(f"  - {advantage}")

# Governance analysis
governance = analyzer.analyze_upgradeability_governance()
print(f"\nGovernance Model: {governance['governance_model']['type']}")
print(f"Upgrade Process Duration: {governance['upgrade_process']['timeframes']['total_process']}")

# Bridge information
bridge_info = analyzer.get_bridge_integration_info()
print(f"\nBridge Withdrawal Time: {bridge_info['bridge_process']['withdrawals_l2_to_l1']['time']}")
print("Supported Assets:")
for asset in bridge_info['canonical_bridge']['supported_assets']:
    print(f"  - {asset}")

Response Example

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "mode": "zkevm",
    "chainId": "0xe708",
    "publicInputHash": "0x...",
    "stateRoot": "0x...",
    "withdrawalRoot": "0x...",
    "batchCommitment": "0x...",
    "prover": "0x...",
    "version": "1.0.0"
  }
}

Understanding Linea zkEVM Configuration

Key Components

1. Mode: Operating mode of the rollup (zkEVM)
2. Chain ID: Network identifier (59144 for mainnet, 59140 for testnet)
3. State Root: Root hash of the current state tree
4. Batch Commitment: Commitment to the current batch of transactions
5. Prover: Address of the proof generation system
6. Version: Current version of the rollup implementation

zkEVM Architecture

• Proof System: Zero-knowledge proofs validate transaction execution
• Data Availability: Transaction data posted to Ethereum L1
• EVM Compatibility: Full compatibility with Ethereum Virtual Machine
• Finality: Probabilistic finality on L2, cryptographic finality via proofs

Common Use Cases

1. Network Health Monitoring

// Monitor rollup health and performance
async function monitorRollupHealth(analyzer) {
  const healthCheck = async () => {
    const status = await analyzer.getComprehensiveRollupStatus();
    
    const alerts = [];
    
    // Check block production
    if (status.current_state.block_age_seconds > 300) {
      alerts.push({
        type: 'stale_blocks',
        severity: 'warning',
        message: 'Blocks are older than expected'
      });
    }
    
    // Check gas utilization
    if (status.current_state.gas_utilization > 95) {
      alerts.push({
        type: 'high_utilization',
        severity: 'info',
        message: 'Network experiencing high usage'
      });
    }
    
    return {
      status: alerts.length === 0 ? 'healthy' : 'warning',
      alerts: alerts,
      metrics: status.current_state
    };
  };
  
  return healthCheck;
}

2. Integration Compatibility Check

def check_integration_compatibility(analyzer):
    """Check if current rollup config is compatible with integration"""
    
    status = analyzer.get_comprehensive_rollup_status()
    rollup_info = status['rollup_config']
    
    compatibility = {
        'evm_compatible': True,  # zkEVM is fully EVM compatible
        'supported_features': [
            'Standard Ethereum transactions',
            'Smart contract deployment',
            'ERC token standards',
            'Event emission and filtering',
            'eth_call and eth_estimateGas',
            'Debug and trace methods'
        ],
        'limitations': [
            'Proof generation delays for finality',
            'L1 data posting affects costs',
            'Bridge withdrawals require waiting period'
        ],
        'recommended_practices': [
            'Use standard Ethereum tooling',
            'Account for L1 fee components',
            'Plan for withdrawal delays',
            'Monitor gas price fluctuations'
        ]
    }
    
    return compatibility

3. Performance Benchmarking

// Benchmark rollup performance characteristics
async function benchmarkRollupPerformance(analyzer) {
  const benchmark = {
    testDuration: '10 minutes',
    metrics: {},
    recommendations: []
  };
  
  // Monitor for performance data
  const performanceData = await analyzer.monitorRollupPerformance(10);
  
  benchmark.metrics = {
    avgBlockTime: performanceData.block_production.average_block_time,
    gasUtilization: performanceData.gas_utilization.average,
    healthScore: performanceData.network_health.health_score
  };
  
  // Generate recommendations
  if (benchmark.metrics.avgBlockTime > 15) {
    benchmark.recommendations.push(
      'Block times are longer than expected - monitor network congestion'
    );
  }
  
  if (benchmark.metrics.gasUtilization > 80) {
    benchmark.recommendations.push(
      'High gas utilization - consider transaction timing optimization'
    );
  }
  
  return benchmark;
}

Integration Considerations

Development

• Tooling: Use standard Ethereum development tools (Hardhat, Truffle, Remix)
• RPC Compatibility: Full JSON-RPC compatibility with additional rollup-specific methods
• Gas Estimation: Account for both L2 execution and L1 data posting costs

Production Deployment

• Security: Leverage zkEVM's cryptographic security guarantees
• Monitoring: Monitor both L2 state and L1 proof submission
• Bridge Integration: Plan for canonical bridge usage and withdrawal delays

User Experience

• Transaction Speed: Fast L2 confirmation with eventual L1 finality
• Cost Optimization: Optimize transaction data to minimize L1 costs
• Bridge UX: Clear communication about withdrawal timeframes

Related Methods

• rollup_gasPrices - Get gas price oracle data
• eth_chainId - Get network chain ID
• eth_getBlockByNumber - Get block information

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Need help? Contact our support team or check the Linea documentation.