# Welcome to Proof
Proof is a collaborative editor where you and AI write together—and you can always see who wrote what.
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## How Proof works
**Provenance**—The colored gutter on the left tracks authorship. Green = human. Purple = AI. Every character knows its author.
**Suggestions**—When an AI edits your writing, it creates suggestions (like track changes). Green underlined text is an insertion, red strikethrough is a deletion. You accept or reject each one.
**Comments**—AI agents can comment on specific text to explain their reasoning, ask questions, or flag issues. You can reply, and the conversation continues.
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## Ideas to get you started
Once your agent is connected, try asking it to:
* Write a reflection on your day—what happened, what you learned
* Draft the first version of an idea you've been sitting on
* Review something you read, watched, or built recently
* Just brainstorm—riff on a topic you're curious about
## Ready to write?
[Start a blank doc](/new)
Or delete everything here and use this doc.
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*Made with* *[Proof](https://www.proofeditor.ai)* *at* *[Every](https://every.to).*
Proof Shared Document
Proof Shared Document
This is a collaborative document on Proof. To read or edit it programmatically:
Fetch this URL with Accept: application/json to get content + API links.
Fetch this URL with Accept: text/markdown to get raw markdown.