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// 1. replace {eth_tx_id_you_want_to_cancel_here} with the transaction id you want to cancel
// 2. $ node cancelTransaction.js
// [notice] you need to run this code before your transaction included into blockchain.
// Depends on network status, you can not cancel. Use this code with your own reponsibility. And there's no guarantee if this works.

var Web3 = require("web3");
var web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
var eth = web3.eth;

var jayson = require("jayson"); // need to install jayson. "$ npm install jayson"

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test

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test

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/**
 * Retrieves all the rows in the active spreadsheet that contain data and logs the
 * values for each row.
 * For more information on using the Spreadsheet API, see
 * https://developers.google.com/apps-script/service_spreadsheet
 */
function readRows() {
  var sheet = SpreadsheetApp.getActiveSheet();
  var rows = sheet.getDataRange();
  var numRows = rows.getNumRows();

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contract SimpleStorage {
    string storedData;

    function SimpleStorage() {
        storedData = "asdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaiasdfasidfjaospdfijaias

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Cost for flooding network ?

eth.getBlock('latest') { difficulty: 67152520821340, extraData: "0xe4b883e5bda9e7a59ee4bb99e9b1bc", gasLimit: 4712388, gasUsed: 480752, hash: "0x021b08887e6e168ea22f130ff8dca3a9d0240363fb49e5a228be2627caaf90dd", logsBloom: "0x00000000040000020000080000060000000000000000000000800000000000020000040000000000000000000010400000000000004000080004000000202000000000000000000000400000000000000000000000040000408000000000000000900000000000000000004000000000000008000000000040028000000010000000000000000000000000400000020000400000000010000000000100001100020000040000000000002006000000000800010000000000000000000000000000004800008000000000000000000000000400000000000020010000000000000010000000000000000000000000080000010000000000000000000000000002",

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/* Add automatic transfer at the end of stack. deployed to

owner address is 0x55d6Ae4a67DFD7fe55eb319D519aF5596317E756

attacking https://etherscan.io/token/thedao-proposal/93

• Bytecode Verification performed was compared on second iteration -

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EthereumのID管理プラグイン MetaMaskは、Ethereumを用いるあらゆる分散型のアプリケーションにアクセスしやすくするためのプラグインです。

あらゆるウェブサイトのJavascript のコンテキストに対して、EthereumのWeb3 APIを提供し、 それによって分散型アプリがブロックチェーンのデータをブラウザから読むことが出来るようになります。

普通のブラウザのコンテクストに対して機能を追加するため、Metamaskはウェブページに対しての読み書きの承認を必要とします。 あなたは他のChrome のプラグインに対して行う方法と同じ方法で、いつでもMetamaskの「ソースを見る」事ができます。 今後私たちはMetamaskのソースコードを公開し、だれでも検証する事ができるようになります。

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http://4.ide.ether.camp/ide.html

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var EventEmitter = require('events').EventEmitter;
var util = require('util');

function EventTest() {
  // see http://d.hatena.ne.jp/Jxck/20110621/1308616949
  EventEmitter.call(this);
}

// EventTestはEventEmitterを継承する
util.inherits(EventTest, EventEmitter);