The hashgraph algorithm requires that nodes add two hashes, a timestamp, and the node's signature to the fundamental payload of business transactions within an event. It is the two hashes that allow all nodes to create a consistent representation of... (More)
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The hashgraph consensus algorithm has been validated as asynchronous Byzantine fault tolerant by a math proof checked by computer using Coq, a formal proof verification system. Coq provides a formal language to write mathematical definitions and executable algorithms and theorems... (More)
When a transaction is given a consensus timestamp, the network of nodes, as a whole, generates that timestamp. The hashgraph shows the time at which each node first received the transaction. The consensus timestamp is defined to be the median... (More)
The Hedera network, at its foundation, is built on the hashgraph consensus algorithm. Hashgraph is based on a gossip protocol, in which the participants don’t just gossip about transactions - they also gossip about gossip. By adding information about their... (More)