how is hashgraph different from blockchain 
hashgraph is a data structure that maintains the records of who told who what and in what order they did so it is a collaborative history of gossip events as participants add and share information which validates transactions much faster than a blockchain blockchain adds previous transaction information to new transaction information and encrypts it a third party is needed to validate the transactions between parties hashgraph doesn t need this slow process because of the gossip protocol hashgraph consensus is much faster than blockchain consensus mechanisms with average transaction confirmation times in seconds rather than minutes 1bitcoin and many other cryptocurrencies have issues with message timing however hashgraph s asynchronous byzantine fault tolerance overcomes the problem of message timing by assuming that lost or delayed messages will eventually make it to their destinations 2for example if two transactions occur simultaneously a blockchain network chooses which order the transactions occurred in some blockchains transaction fees prioritize confirmation other networks might decide which transaction is confirmed based on how many tokens a validator has staked in these blockchains one node influences the outcome hashgraph consensus eliminates the influence one node or a group of nodes can have on transactions because there is a timestamp on each transaction and each transaction is communicated to the entire network transaction timing issues are resolved 3