Transactions

The Midnight node supports the standard Polkadot SDK transaction format, but default Substrate-style signed extrinsics are uncommon in practice. Midnight relies on a proof-based verification model tightly coupled with the Midnight Ledger.

Lifecycle overview

flowchart TB
  Build["Build transaction + ZK proof<br/>(wallet / SDK)"]
  Submit["Submit to node RPC / P2P"]
  Pool["Transaction pool<br/>well-formedness check"]
  Block["Included in block"]
  Verify["Runtime verifies embedded proof"]
  Execute["Execute state transition"]
  Commit["Commit to trie + ledger commitment"]