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![Ben Jeater](https://ph-avatars.imgix.net/950076/original.jpeg?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=48&h=48&fit=crop&frame=1)
Ben Jeater
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FactomAuthorise allows me to upload any file from my PC to prove without a shadow of a doubt that I made and own the contents of a file. It's great for code (in case of theft) because you can prove you made it first, and the stolen code is a mathematically provable match to the code you wrote.
Pros: Simple interface, fast response, free
Cons: None so far
FactomAuthorize
Protect your work on the blockchain
![Ben Jeater](https://ph-avatars.imgix.net/950076/original.jpeg?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=48&h=48&fit=crop&frame=1)
Ben Jeater
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Open Telegram, start a chat with the Factom Robot, and send your file. Once you've done that, you can always prove that a file belongs to you.
Pros: Quick and easy to use
Cons: None
![Factom Robot](https://ph-files.imgix.net/49370a05-a3c7-455b-94ed-9249cbdd8523.png?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=48&h=48&fit=crop&frame=1)
Factom Robot
Blockchain proof-of-possession for intellectual property 👩💻