Question 1

What is an Arc RPC node?

Accepted Answer

An Arc RPC node is a server that exposes Arc's JSON-RPC API, letting applications query blockchain data, submit transactions, and interact with smart contracts deployed on the network. Developers use Arc RPC nodes to build stablecoin payment, FX, and tokenization apps without running their own node infrastructure.

Question 2

How is Arc different from other EVM blockchains?

Accepted Answer

Arc is EVM-compatible but purpose-built for stablecoin finance. The most significant difference is its gas model: Arc uses USDC as the native gas token. Arc also offers deterministic sub-second finality and opt-in privacy features designed for institutional and regulated workloads.

Question 3

What is GetBlock's Arc RPC service?

Accepted Answer

GetBlock provides reliable RPC node access to Arc, giving developers high-availability endpoints without the cost or complexity of running their own node infrastructure. This includes access to the full Arc JSON-RPC API.

Question 4

Which wallets and libraries work with Arc RPC?

Accepted Answer

Because Arc is EVM-compatible, it works with standard Ethereum-compatible wallets, including MetaMask, libraries, and development frameworks. Connect by adding the Arc RPC URL and the Chain ID to your wallet or Web3 client.

Question 5

What data can Arc RPC nodes access?

Accepted Answer

Arc RPC nodes return account balances, transaction histories, block data, smart contract states, event logs, and gas estimates through the standard Ethereum JSON-RPC interface.

Question 6

How do I connect to Arc RPC?

Accepted Answer

Connect to Arc RPC using GetBlock's HTTPS or WebSocket endpoint along with a standard Ethereum-compatible client library. Add the Arc Chain ID to your wallet or Web3 client configuration, and you're ready to send transactions, query state, or subscribe to real-time chain events.

Question 7

What are common Arc RPC methods?

Accepted Answer

Because Arc is EVM-compatible, it exposes the standard Ethereum JSON-RPC interface with methods like eth_blockNumber, eth_getBalance, eth_sendRawTransaction, eth_call, and debug/trace methods. Most Ethereum JSON-RPC methods work on Arc out of the box, though some endpoints or behaviors may differ from Ethereum mainnet.

Question 8

Does Arc RPC support real-time data streaming?

Accepted Answer

Yes. Arc supports WebSocket subscriptions, providing real-time streams of new blocks, pending transactions, contract event logs, and account state changes. This is essential for payment processors, treasury systems, FX engines, and trading applications that need live data without polling overhead.

Question 9

What is Arc Chain ID?

Accepted Answer

Arc Testnet uses Chain ID 5042002. This identifier is essential when adding Arc to a wallet or configuring a Web3 client. The Arc Mainnet Chain ID will be published when mainnet launches.

Question 10

Does Arc have a block explorer?

Accepted Answer

Yes. Arc provides an official block scanner, showing detailed views of transactions, blocks, addresses, smart contract verification, and stablecoin transfers on the network.

Architecture & Consensus Model	EVM-compatible L1, Malachite consensus (Tendermint-based BFT)
Launch Date	October 28, 2025
Average Block Time	~0.5 s
Throughput (TPS)	~3,000 TPS; 10,000+ TPS in optimized configurations
Gas Token	USDC
Smart Contract Support	Yes
Programming Languages	Solidity
Notable Use Cases	Payments, FX, tokenized RWAs, agentic economy
Chain ID	5042002 (testnet)
Data Availability	Native
State Validation	Native
Sequencer / Block Proposer	Rotating proposers within permissioned validator set
Network Type	Public
Transaction Privacy	Opt-in privacy controls
Transaction Ordering	Validator-determined

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