Proof of existence Reviews and details

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2023-07-27

Features & Specs

Immutability

Once a document is hashed and submitted to the blockchain, it becomes permanently recorded. This ensures that the proof cannot be altered, providing a permanent and immutable record of existence.
Decentralization

Proof of Existence utilizes blockchain technology, which is decentralized. This means that no single entity controls the records, aiding in transparency and reducing the risk of data tampering.
Privacy

The service only stores cryptographic hashes, not the document itself. This means document contents remain confidential and private while still allowing proof of their existence.
Cost Efficiency

Compared to traditional methods of notarization, using the blockchain for proof of existence is often more cost-effective, as it eliminates the need for third-party intermediaries.
Timestamping

Documents are hashed and recorded with a timestamp on the blockchain, providing verifiable evidence of the exact date and time of existence.

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Social recommendations and mentions

We have tracked the following product recommendations or mentions on various public social media platforms and blogs. They can help you see what people think about Proof of existence and what they use it for.

I just need to vent, I got scammed
Write down everything you remember while it is still fresh, including all BTC addresses. You can even store a hash of your notes in the blockchain as proof of existence. Source: over 1 year ago
Is it safe to develop a video game with online strangers? Is there a best practise to protect my work?
If that's not enough, you could publish a hash. Proof of Existence is a service that adds it to the blockchain so you can always prove it, but realistically that's overkill and I'm sure sticking it on Google Drive would be enough. Source: about 2 years ago
Proof of Existence app
Bitcoin has proofofexistence.com. It hashes a file via the browser and stores the result in OP_RETURN. The current fee is around $7, which is no longer practical. Source: over 2 years ago
Including a newspaper front page in a photo can prove that the photo was not taken prior to a certain date, but is there any way to prove a photo was not taken *after* a certain date?
Proof Of Existence is a service for this. You take the hash of the photo, then when you're picking random numbers to mine bitcoin, pick numbers that start with that. Once you've successfully mined a block, that number will be stored in the blockchain. Source: about 3 years ago

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This is an informative page about Proof of existence. You can review and discuss the product here. The primary details have not been verified within the last quarter, and they might be outdated. If you think we are missing something, please use the means on this page to comment or suggest changes. All reviews and comments are highly encouranged and appreciated as they help everyone in the community to make an informed choice. Please always be kind and objective when evaluating a product and sharing your opinion.