Transaction

j"1LAnZuoQdcKCkpDBKQMCgziGMoPC4VQUckM6<div class="post">No.<br/><br/><div class="quoteheader">Quote from: BitCoin paper</div><div class="quote">It is possible to verify payments without running a full network node. &nbsp;A user only needs to keep a copy of the block headers of the longest proof-of-work chain, which he can get by querying network nodes until he's convinced he has the longest chain, and obtain the Merkle branch linking the transaction to the block it's timestamped in. He can't check the transaction for himself, but by linking it to a place in the chain, he can see that a network node has accepted it, and blocks added after it further confirm the network has accepted it.</div><br/>So you would only download the most recent 200 or so blocks and then new blocks as they come in, relying on the network to verify the blocks for you. It would be a really lightweight way to use BitCoin. It would even be useful for "full network nodes" as they are downloading the whole block chain.<br/><br/>Congrats on 100 posts!&nbsp; <img alt="Smiley" border="0" src="/static/img/emoticons/smiley.gif"/></div> text/html