How Can a Smart Contract Detect If an Oracle Feed Is Stale?

A smart contract can detect a stale feed by checking the timestamp of the last price update provided by the oracle. The contract is programmed with a maximum acceptable latency.

If the time elapsed since the last update exceeds this pre-set threshold, the contract will refuse to execute the transaction, protecting itself from acting on outdated and potentially manipulated data.

What Is a Maximum Acceptable Slippage Tolerance and Why Is It Set?
What Is a ‘Front-Running’ Attack in the Context of an Oracle Price Update?
What Is a “Deviation Threshold” in Oracle Price Feeds?
What Is ‘Latency Arbitrage’ and How Does ‘Last Look’ Attempt to Mitigate It?
How Can a DeFi Protocol Detect and Prevent a Flash Loan-Induced Price Manipulation Attempt?
How Does the Compiler Handle Assembly Code regarding Integer Checks?
How Does a ‘Deviation Threshold’ Affect a Data Feed Update?
What Is the Maximum Acceptable Deviation for a Block Timestamp?

Glossar