Ethereum’s Clear Signing Standard Tackles Blind Transactions with ERC-7730
The ERC‑7730 Clear Signing standard developed by Ethereum simplifies wallet prompts by replacing intricate hex codes with easily interpretable transaction summaries, significantly minimizing phishing threats and the risks associated with blind signing.
Overview
- ERC‑7730 has been collaboratively developed by the Ethereum Foundation’s Clear Signing working group and Ledger, facilitating a shift from cryptic wallet calldata to clear transaction summaries.
- This standard employs a JSON format, a public registry linked to contract addresses, and audits from third parties, allowing wallets to present user intentions accurately without changing on-chain logic.
- The initiative addresses an increase in phishing and approval scams, evidenced by events such as the CoW DAO domain hijack and Binance reporting 22.9 million thwarted phishing attempts, underscoring the need for clearer prompts.
The Clear Signing working group at the Ethereum Foundation has announced a new open standard designed to replace the complex, machine-readable hex data typically displayed by wallets during transaction approvals, according to an official blog post. Based on the ERC-7730 specification, Clear Signing aims to standardize how transaction intent is expressed, shown, and verified across wallets, providing users with a clear, plain-language summary of actions before they confirm.
ERC-7730 and the elimination of unreadable transaction prompts
Clear Signing addresses one of the long-standing and frequently exploited user experience (UX) issues in the crypto space. When users interact with smart contracts—whether approving token spending, listing NFTs, or authorizing DeFi actions—they usually encounter indecipherable raw calldata or a partial ABI decode understood only by developers. This disconnect between what is shown and the actual transaction details is a major factor contributing to phishing attacks, where malicious dApps create a deceptively benign interface while draining user wallets. Ledger, a co-developer of ERC-7730, stresses that this standard specifically targets this vulnerability, noting that “blind signing” is a leading cause of substantial losses for hardware wallet users.
Clear Signing’s architecture includes three key components. First, a unified JSON-based description format linked to ERC-7730, enabling dApp developers to provide human-readable explanations for every function call and parameter. Second, a public registry to store, version, and connect these descriptions to deployed contract addresses, allowing wallets to access the relevant metadata during signing. Third, an independent verification layer where third parties can assess and confirm the accuracy of contract descriptions, establishing trust between the dApp developer’s intent and what the wallet displays.
WYSIWYS: Changes for users and what remains unchanged
This standard is designed to be non-disruptive. Clear Signing does not modify how transactions are structured, transmitted, or executed on-chain. Existing smart contracts, Layer 2 networks, and DeFi protocols do not require changes to take advantage of it. The improvement lies solely in wallet presentation: instead of raw hex strings or partial parameter listings, 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, verified, human-readable description sourced from the ERC-7730 registry for that contract.
For the wider Ethereum security landscape, Clear Signing is launched at a pivotal moment when wallet-level phishing and approval scams are prevalent as major attack vectors for retail users, even as protocol-level exploits become more challenging on mature, audited contracts. A recent crypto.news article detailing the CoW DAO domain hijacking incident—where attackers redirected users to a phishing site for 4.5 hours and prompted them to approve harmful transactions—highlights the issue that Clear Signing seeks to address: users who could have understood their transaction approvals would have been significantly more likely to spot the anomaly before confirming. Furthermore, another crypto.news article on Ethereum’s Glamsterdam devnet mentions that the Foundation is progressing toward execution-layer improvements and leadership adjustments, with Clear Signing being a critical element of a broader initiative to enhance Ethereum’s security and accessibility at all levels, independent of protocol-level modifications. Additionally, as noted in a different crypto.news article on AI-driven crypto fraud, Binance’s security reports recorded 22.9 million phishing attempts foiled in Q1 2026 alone—a statistic that underscores the urgent requirement for clearer transaction approval processes for everyday users, marking this as an important security priority.