EIP-7702 and ERC-4337: Persistent Delegation and Wallet Permissions
One wallet confirmation can involve several kinds of permission. A token allowance, a wallet session key and EIP-7702 code delegation have different…
Showing posts with the label Digital Wallet
Hot and Cold Wallets: Key Isolation, Signing Risk and Recovery
Reviewed and updated: October 19, 2026. Hot and cold describe how signing keys are exposed, not whether an asset appears on an internet-connected sc…
Crypto Wallet Security: Keys, Approvals, Backups and Incident Checks
The Blockchain Story · Lesson 11 of 12 · Beginner entry, with Advanced follow-up Narrative introduction added October 20, 2026 (UTC). From seed phras…