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This page describes account abstraction in the legacy Sophon v1 chain. The chain is being wound down; see the migration guide for current actions.
Sophon v1 inherited native account abstraction from the ZK Stack. Unlike an ERC-4337 overlay, the ZK Stack transaction model treated programmable accounts and paymasters as protocol-level capabilities. The legacy design supported:
  • custom signature and authorization logic;
  • multisignature and recovery patterns;
  • application-specific transaction restrictions;
  • paymasters that could sponsor gas or accept alternative fee tokens;
  • a unified transaction flow for externally owned and smart-contract accounts.
This page is an architectural summary, not current deployment guidance. The separate Sophon Account section documents the account SDK and connectors that remain in this repository.