Supported Chains

CrowdProof indexes on-chain activity across multiple EVM-compatible networks to build comprehensive reputation profiles.

Production Chains

Chain	Chain ID	Status	Score Categories
Ethereum	1	Active	All categories
Polygon	137	Active	All categories
Arbitrum One	42161	Active	All categories
Optimism	10	Active	All categories
Base	8453	Active	DeFi, DEX, NFT

Testnets

Chain	Chain ID	Status	Notes
Sepolia	11155111	Active	Ethereum testnet
Mumbai	80001	Active	Polygon testnet
Arbitrum Sepolia	421614	Active	Arbitrum testnet

DID Registration by Chain

When registering a DID, specify the chainId to indicate the primary chain:

{
  "walletAddress": "0x1234...",
  "chainId": 1
}

The resulting DID format: did:ethr:<chainId>:<address>

• Chain ID 1 (default): did:ethr:0x1234...
• Chain ID 137: did:ethr:137:0x1234...

Cross-Chain Scoring

CrowdProof aggregates activity across all supported chains into a unified score. The same wallet address on different chains contributes to a single reputation profile.

How It Works

1. Address Linking — DID registration links a wallet address to a unified identity
2. Multi-Chain Indexing — Indexers monitor all supported chains for the registered address
3. Score Aggregation — Activity from all chains feeds into category-specific scoring models
4. Chain Weighting — Higher-value chains (Ethereum mainnet) may carry more weight in confidence calculations

Protocol Coverage

Representative protocols indexed per chain:

Ethereum

Aave V3, Compound V3, Uniswap V3, MakerDAO, Lido, ENS, Nouns DAO

Polygon

Aave V3, QuickSwap, Balancer, Lens Protocol

Arbitrum

GMX, Camelot, Radiant Capital, Pendle

Optimism

Velodrome, Synthetix V3, PoolTogether, Optimism Governance

Base

Aerodrome, BaseSwap, friend.tech

Adding New Chains

New chain support is proposed and voted on through governance. Requirements:

1. EVM-compatible
2. Reliable RPC infrastructure
3. Sufficient DeFi/governance activity to generate meaningful scores
4. Community demand (governance proposal with quorum)