uint fee = oracle.getUpdateFee(priceUpdate); oracle.updatePriceFeeds{ value: fee }(priceUpdate); PythStructs.Price memory price = oracle.getPriceNoOlderThan(priceFeedId, 30); The price only has publishTime and no other time guarantees. How can I prove a price update is the most recent (or at least …

[image] Price Feeds | Pyth Network API Reference API reference, interactive explorer, and documentation for Pyth network products. function getPriceNoOlderThan( bytes32 id, uint age ) public view virtual override returns (PythStructs.Price memory pric…

That’s true. When you fetch from hermes v2/update/price/latest , it will return the latest price which was published & aggregated on pythnet(oracle infra).

Right, so if any proof is submitted onchain, you can only prove that the data is newer than the last known price. But no idea if there are more proofs more recent or the one submitted was the most recent within a time range Eg last price onchain is from now-1hr, user submits a proof of an update wi…

You are absolutely right. On the other hand, all crypto are reference rates price feeds are being updated every 400ms 24x7. There are some exception that you can find in our market hours page.

That’s why we recommend folks to use getPriceNoOlderThan with a threshold(age) as per your need. We see alot of users use 30~60 seconds. API Reference for getPriceNoOlderThan. If this fails, you can update with the latest price, hence making sure that you are getting the latest price.

Yes but the lack of no new price updates could be from many things. Market hours, emergency circuit breaker, pythnet being down, or users not supplying a fresh price update onchain. There is no way to differentiate between no new price available or no new price provided afaik

@0xjimmy this is a great question. Unfortunately we don’t have an easy way to do it as each price has it’s own timestamp. However, if you feel a bit hacky, there are ways to proof it by making some assumptions on how the data is generated. What you can do, is to bundle your asset with a 24/7 asset …

How to prove a priceUpdate is the latest available?

Price Feeds

0xjimmy September 30, 2025, 6:37am 6

This is an issue for tradfi markets though. Does Laser have any better guarantees about data?

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How to prove a priceUpdate is the latest available?

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