j"1LAnZuoQdcKCkpDBKQMCgziGMoPC4VQUckM·<div class="post"><div class="quoteheader"><a href="https://bitcointalk.org/index.php?topic=286.msg2714#msg2714">Quote from: spaceshaker on July 14, 2010, 01:52:00 AM</a></div><div class="quote"><div class="quoteheader"><a href="https://bitcointalk.org/index.php?topic=286.msg2696#msg2696">Quote from: gavinandresen on July 14, 2010, 12:42:32 AM</a></div><div class="quote">And I expect most of us will be running lightweight clients that just keep our wallets, sign transactions, and send and receive transactions to the ultra-fast nodes that ARE looking at every transaction.<br/></div><br/>Is this possible? What would this look like? From a technical perspective what does a "lightweight client" look like for you? My understanding is that the Bitcoin client needs the entire block chain in order to establish trust.<br/></div>I'm imagining:<br/><br/>A lightweight client would have a wallet with coins in it (public+private key pairs).<br/><br/>And a secure way of sending messages to, and getting messages from, any of the ultra-fast, always-connected heavyweight nodes.<br/><br/>The lightweight client sends money by:<br/> creating a transaction (signing coins with the private key)<br/> sending the signed transaction securely to the ultra-fast server, which puts it on the network.<br/> receiving confirmation that the transaction was valid and sent, and updating its wallet (marks coins as spent)<br/> (or getting a "you already spent those coins" error from the server)<br/><br/>The lightweight client receives money by:<br/> Either polling the server every once in a while, asking "Any payments to these BC addresses that I have in my wallet?"<br/> ... or asking the server to tell it whenever it sees a transaction to a list of BC addresses (or maybe when it sees<br/> a relevant transaction with N confirmations)<br/> When transactions occur, the lightweight client updates its wallet (adds the coins).<br/><br/>You don't have to trust the server; it never has your private keys.<br/><br/>Well, you do have to trust that the server doesn't lie about whether your transactions are valid or not, but why would the server lie about that?<br/><br/></div> text/html
https://whatsonchain.com/tx/c0d1768d888dd299c856e6d01ec13e7eaa35f200ccdbf0ef05c2f23adb5871aa