Ethereum’s Clear Signing Standard Addresses Blind Transactions through ERC-7730
The ERC‑7730 Clear Signing standard from Ethereum replaces complex hex codes in wallet prompts with easily understandable, auditable transaction summaries, significantly reducing phishing risks and blind signing losses.
Summary
- ERC‑7730 has been co-developed by the Ethereum Foundation’s Clear Signing working group and Ledger, enabling a transition from confusing wallet calldata to straightforward transaction summaries.
- This standard utilizes a JSON format, a public registry tied to contract addresses, and third-party audits, allowing wallets to accurately present user intent without altering on-chain logic.
- The initiative responds to a rise in phishing and approval scams, as highlighted by incidents like the CoW DAO domain hijack and Binance blocking 22.9M phishing attempts, showcasing the necessity for clearer prompts.
The Clear Signing working group at the Ethereum Foundation has unveiled a new open standard aimed at replacing the complex, machine-readable hex data that wallets show when users need to approve transactions, as per an official blog post. Built upon the ERC-7730 specification, Clear Signing seeks to standardize the way transaction intent is expressed, displayed, and verified across wallets, offering users a clear, plain-language summary of what will happen on-chain before they confirm.
ERC-7730 and the end of unreadable transaction prompts
Clear Signing tackles one of the oldest and most exploited user experience (UX) flaws in crypto. When users interact with smart contracts—be it approving token spends, listing NFTs, or authorizing DeFi positions—they typically receive incomprehensible raw calldata or a partial ABI decode that only developers can understand. This disparity between what is displayed and what the actual transaction entails is a primary factor that leads to many phishing attacks, where malicious dApps present an innocuous-looking interface while draining the user’s wallet. Ledger, a co-developer of ERC-7730, emphasizes that this standard specifically addresses this vulnerability, noting that “blind signing” is among the top causes of significant losses for hardware wallet users.
Clear Signing’s architecture comprises three main components. Firstly, a unified JSON-based description format linked to ERC-7730, allowing dApp developers to annotate their contracts with human-readable explanations for each function call and parameter. Secondly, a public registry to store, version, and link these descriptions to deployed contract addresses, enabling wallets to retrieve the necessary metadata at the time of signing. Thirdly, an independent verification layer where third parties can review and validate the accuracy of contract descriptions, creating a trust chain between the dApp developer’s intent and what the wallet ultimately displays.
WYSIWYS: what changes for users and what stays the same
This standard is intentionally non-breaking. Clear Signing does not alter how transactions are structured, broadcast, or settled on-chain, meaning existing smart contracts, Layer 2 networks, and DeFi protocols don’t need to change to leverage it. The enhancement lies solely in the wallet presentation: instead of a raw hex string or partial parameter dump, a compatible wallet will convey messages like “Approve Uniswap to spend up to 500 USDC from your wallet” or “List CryptoPunk #4156 for sale at 40 ETH on OpenSea”—a precise, audited, human-readable description sourced from the ERC-7730 registry entry for that contract.
For the broader Ethereum security ecosystem, Clear Signing arrives at a critical juncture where wallet-level phishing and approval scams dominate as the primary attack vector for retail users, even while protocol-level exploits grow increasingly difficult on mature, audited contracts. A recent crypto.news article regarding the CoW DAO domain hijacking incident—during which attackers redirected users to a phishing site for 4.5 hours, prompting them to sign harmful transactions—highlights the failure that Clear Signing aims to mitigate: users who could understand what they were signing would have been far more likely to detect the anomaly before approving the transaction. Concurrently, another crypto.news piece on Ethereum’s Glamsterdam devnet noted that the Foundation is advancing toward execution-layer enhancements and leadership restructuring, with Clear Signing forming a crucial part of a wider initiative to enhance Ethereum’s security and accessibility at every layer without waiting for protocol-level changes. Moreover, as highlighted in another crypto.news article about AI-driven crypto fraud, Binance’s security reports indicate 22.9 million phishing attempts thwarted in Q1 2026 alone—a figure emphasizing the urgent need for clearer transaction approval processes for everyday users, making this a crucial security priority.