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Insights, guides, and updates on blockchain infrastructure, RPC performance and building better dApps.

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How to Monitor Smart Contract Events in Production
Smart Contracts

How to Monitor Smart Contract Events in Production

Build a production-grade smart contract event monitor using ethers.js WebSocket subscriptions. Covers reconnection logic, missed event recovery, multi-contract monitoring and alerting.

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BoltRPC Team 8 min read
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Ethereum Sepolia Testnet RPC Guide: How to Connect and Test (2026)
Ethereum

Ethereum Sepolia Testnet RPC Guide: How to Connect and Test (2026)

Connect to Ethereum Sepolia testnet with ethers.js, viem, Web3.py, curl. Covers chain ID, endpoint setup, smart contract deployment, CI/CD pipelines, common issues.

7 min read
What is a Smart Contract? A Developer's Guide (2026)
smart contracts

What is a Smart Contract? A Developer's Guide (2026)

A clear, practical guide to smart contracts for developers in 2026: how they work, how they're written, how you interact with them via RPC, and what their real limitations are.

11 min read
Ethereum Hoodi Testnet RPC Guide: How to Connect and Test (2026)
Ethereum

Ethereum Hoodi Testnet RPC Guide: How to Connect and Test (2026)

Connect to Ethereum Hoodi testnet with ethers.js, Web3.py, curl. Covers RPC methods, faucet links, smart contract testing workflow, common issues.

8 min read
Polygon Amoy Testnet RPC Guide: How to Connect and Test (2026)
Polygon

Polygon Amoy Testnet RPC Guide: How to Connect and Test (2026)

Complete guide to Polygon Amoy testnet RPC: endpoints, chain ID, ethers.js, Web3.py, curl, contract deployment, faucets, common issues.

7 min read
Ethereum RPC Methods: A Practical Guide for dApp Developers
Ethereum

Ethereum RPC Methods: A Practical Guide for dApp Developers

The Ethereum JSON-RPC methods you will actually use. Covers eth_call, eth_getLogs, eth_getBalance, eth_sendRawTransaction and more with real code examples.

9 min read