On the fifth of August 2024, mid-cascade, Chainlink's ETH/USD feed published a single number for the whole market to act on.
Underneath it, thirty-one nodes had each reported their own, decoded here from the NewTransmission log at block 20,458,998.
They spread 868 basis points. Six were more than 200 from the median. The feed keeps the median and throws the rest away.
SELISIH writes every reading as its own entity, under its own key. The same query now returns the disagreement itself.
The outlier is not flagged by us. It is named by its creator, which cannot be edited or handed to anyone else.
The median is drawn on this screen and never written, so there is no canonical number here for anyone to trade against.
And a reading cannot be quietly withdrawn. A disputant already tried to extend this one and was refused, so it paid to pin its own copy instead.
Now the outlier's lifetime runs out. Thirty of thirty-one. Nothing was deleted, the chain simply stopped serving it, and the copy someone else paid for is still here.