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Subspace is an asynchronous private messaging protocol. It's designed to be fast, lightweight, scalable, and easy to implement. All messages are encrypted and the non-content data, such as the sender and recipient, is hidden from passive observers.
Nome: Subspace
Tipo: P2P Anonymous Messaging Protocol
Proof-of-concept messaging client: http://www.bitcoinauthenticator.org/subspace/
Sorgenti: https://github.com/BitcoinAuthenticator/Subspace
Reddit: https://www.reddit.com/r/subspace_p2p/
Approfondimento: http://n-o-d-e.net/post/112969014376/subspace-a-private-messaging-layer-for-bitcoin