http://u4embjw2uzwpdubgm72ywbmixte4kqgwurc4r4rp6elhlokutdfsy4id.onion/about
You can securely and anonymously store proof of the existence of any of your documents (e.g. images, videos, documents, binaries) in the decentralized ledger without revealing the actual content of the document. We do not store any of your data (with the exception of the document ' s hash). Your documents are not uploaded to our database or stored on the blockchain, and they never leave your device.