Discover how smart contracts work, the most common token standards, and real-world use cases that power decentralized application
How to Deploy Smart Contracts With $0 Gas Using Testnets You don’t need real ETH to learn, build, test, and even run full CI/CD for Web3. In this practical guide, you’ll deploy contracts to modern Ethereum testnets (Sepolia, Holesky, Base Sepolia, Polygon Amoy, Optimism/Arbitrum Sepolia, zkSync Sepolia) and popular alt L1 testnets (Avalanche Fuji, BNB […]
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How US Developers Can Deploy a Smart Contract on Base A step-by-step, security-first guide for deploying Solidity smart contracts to Base (Coinbase’s Ethereum L2): local dev, testnet (Base Sepolia), mainnet, verification, bridging, CI/CD, and compliance tips for US builders. Beginner → Intermediate Base (OP Stack) • ~25–35 min read • Updated: 2025-11-13 TL;DR Build locally
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The Rise of Real-World Assets (RWA) How DeFi Meets Traditional Finance Tokenization isn’t just about apes and JPEGs. It’s about T-bills, money market funds, private credit, real estate, and even revenue streams moving onto shared ledgers with programmable settlement. This guide explains what RWAs are, why they matter, how the plumbing works (issuers, SPVs, oracles,
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Build Once, Ship Everywhere: Cross-Chain UX that Doesn’t Suck — A 2025 Builder’s Guide Users don’t care about your bridge, your gas token, or which L2 sequencer finalized first. They care about doing the thing swap, stake, mint, pay, fast, safely, and with one clear receipt. This guide distills a pattern library for shipping intent-based
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Gas-Fee Engineering in 2025: How to Ship Fast Apps Users Don’t Hate Angle: Understand the post-EIP-4844 fee stack on Ethereum L2s, apply calldata→blob migration, add compression, and use account-abstraction paymasters so that everyday usage feels “near-free” without degrading safety or reliability. Why it’s hot: After EIP-4844 (proto-danksharding), rollups can post cheap blob data to L1,
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ETH Roadmap 2025–26 (Pectra + Verkle): What Changes for Users & Devs Pectra landed in 2025 to tighten UX, validator ops, and staking ergonomics; Verkle trees are next up to overhaul state commitments and enable true stateless clients. This long-form guide maps what’s live, what’s next, and exactly how wallets and dapps should prepare down
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AI Agents That Hold & Spend Crypto (2025): The Wallet-Native AI Wave The 2025 breakout theme across crypto is wallet-native AI agents that custody assets, pay gas, tip creators, place trades, renew subscriptions, and unlock data without human signatures each time. Two things made this real: ERC-4337 account abstraction and production-grade paymasters + session keys.
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Account Abstraction in Practice: Passkeys, Session Keys & Gas Sponsorship (2025 Edition) In 2025, account abstraction (AA) finally crossed from experiments to production. Passkeys replaced seed phrases for mainstream users, session keys unlocked frictionless in-app actions, and paymasters made “gasless” possible without centralizing custody. This guide is a practical, end-to-end playbook: how to ship passkey
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Solana “Actions” & Blinks: Transacting from Any App (and X) Solana Actions and Blinks unlock a new UX primitive: onchain actions that execute from almost anywhere, a website, a blog post, an email, a chat client, even an X (Twitter) post. Instead of driving users through multi-page dApp flows, you publish a simple, shareable link
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Smart Wallets & Passkeys: The 2025 Guide to Account Abstraction (ERC-4337) Passwords are dying, seed phrases have scared mainstream users for a decade, and wallet UX is finally catching up. In 2025, passkeys (WebAuthn/FIDO2) are going default on major platforms, while account abstraction (ERC-4337 smart accounts) turns wallets into programmable apps that can do gas
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