Hackers' Pub

Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

Hacker News 50 @hn50@social.lansky.name

8/2/2025, 9:20:06 PM

Public

Hiding secret codes in light protects against fake videos

Link: https://news.cornell.edu/stories/2025/07/hiding-secret-codes-light-protects-against-fake-videos
Discussion: https://news.ycombinator.com/item?id=44768513

Abe Davis, left, assistant professor of computer science in the Cornell Ann S. Bowers College of Computing and Information Science, and graduate student Peter Michael with a watermark light.

Hiding secret codes in light protects against fake videos | Cornell Chronicle

A team of Cornell computer science researchers has developed a way to “watermark” light in videos, which they can use to detect if video is fake or has been manipulated, another potential tool in the fight against misinformation.

news.cornell.edu · Cornell Chronicle

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