Smart Contracts

Smart Account Recovery and Account Takeover Security ERC-7947 Smart Account Recovery: Recovery Providers, Proofs, and Takeover Risk ERC-7947 smart account recovery proposes a common interface for restoring access to smart accounts through one or more recovery providers when the normal access credential is lost or unavailable. Instead of forcing every wallet to invent an incompatible

Smart-Wallet Signature Validity and Replacement Security ERC-5719 Signature Replacement: Stale Smart-Wallet Signatures After Owner or Policy Changes ERC-5719 signature replacement addresses a problem that appears when a smart-contract wallet signs data today but its validation policy changes before another application uses that signature. Under ERC-1271, a contract wallet decides whether a signature is valid by

Wallet Batching and Account Abstraction ERC-5792 wallet_sendCalls Explained: Batch Transactions, Status Checks, and Wallet Safety ERC-5792 defines a wallet-level API for asking a crypto wallet to process multiple on-chain calls as one coordinated request and for checking what happened afterward. Instead of forcing an application to assume that every account sends one conventional transaction at

No-Code ERC-20 Build and Review Workflow ERC-20 Token Generator Guide: Create and Deploy a Token Without Coding You can create an ERC20 token without coding from a blank Solidity file by using a generator that assembles a readable contract from established components. The generator can configure token metadata, initial supply, minting, burning, pausing, permit approvals,

TokenToolHub Upgrade Intelligence Guide Smart Contract Diff Guide: Compare Upgrades Before They Go Live A smart contract diff compares a trusted baseline with a proposed or newly deployed version to show what changed in functions, permissions, storage, proxy administration, events, safeguards, economic limits, and upgrade authorization. The purpose is not merely to count edited lines.

TokenToolHub Smart Contract Security Guide SafeMath and Overflow in Solidity: How Smart Contracts Protect Token Calculations SafeMath and overflow analysis explains whether Solidity calculations revert, wrap, truncate, round, or silently lose precision when contracts update token balances, fees, rewards, debt, shares, interest, and supply. Modern Solidity versions check ordinary integer arithmetic by default, but compiler

TokenToolHub Smart Contract Security Guide Integer Overflow and Underflow Explained: Solidity Versions, SafeMath, Checked Arithmetic, and DeFi Risk An integer overflow smart contract bug occurs when an arithmetic result exceeds the largest value that its integer type can represent, while underflow occurs when a result falls below the type’s minimum value. Older Solidity contracts could

TokenToolHub Smart Contract Guide Smart Contract Events Explained: Logs, Transfers, Ownership Changes, Fee Updates, and On-Chain Activity Smart contract events are structured records emitted during blockchain transactions so wallets, explorers, analytics platforms, applications, and investors can follow what a contract did. Events can reveal token transfers, approvals, ownership changes, role assignments, fee updates, mints, burns,

TokenToolHub Security Guide Burn Functions in Smart Contracts: Real Burns, Dead Wallets, Supply Claims, and Verification Checks A burn function crypto users encounter is intended to remove tokens from usable supply, usually by reducing an account balance and the token’s total supply. Some burns are genuine and permanent, while others merely transfer tokens to a