Saturday, May 5, 2018

Blockchain Entertainment


Blockchain Entertainment

Laptops, URL, Play with Blockchain

Interactive Blockchain created by Anders
https://anders.com/blockchain/hash.html

Ethereum Faucet - rinkeby-faucet
http://rinkeby-faucet.com/send?address=0x5d69b9Be3576b7C6B25C2fD382aAe2549BE270AD

Metamask
https://metamask.io/

MetaMask is a bridge that allows you to visit the distributed web of tomorrow in your browser today. It allows you to run Ethereum dApps right in your browser without running a full Ethereum node.

MetaMask includes a secure identity vault, providing a user interface to manage your identities on different sites and sign blockchain transactions.

You can install the MetaMask add-on in Chrome, Firefox, Opera, and the new Brave browser. If you’re a developer, you can start developing with MetaMask today.

Our mission is to make Ethereum as easy to use for as many people as possible.

Charts Ethereum BlockTime History
https://etherscan.io/chart/blocktime

Smart Contract - account controlled by code
contract def->solidity compliler->
1. byte code ready for deployment
2. Application Binary Interface ABI

Java Script Code as UI ->
ABI - translation layer ->
Byte Code

remix.ethereum.org

https://etherconverter.online/

https://github.com/djrtwo/evm-opcode-gas-costs
Gas Costs from Yellow Paper -- EIP-150 Revision (1e18248 - 2017-04-12)
https://docs.google.com/spreadsheets/d/1n6mRqkBz3iWcOlRem_mO09GtSKEKrAsfO7Frgx18pNU/edit#gid=0

12 word mnemonic
to use a differebt word sety: metamask rught click - remove metamask from chrome.
install metamask again.

https://iancoleman.io/
BIP39 Mnemonic Code Converter
other...

Alternative Tools

This tool is interoperable with any BIP39 wallet.

Some similar tools to this one (ie not consumer wallets) are

https://bip32jp.github.io/english/

Offline Usage

You can use this tool without having to be online.

In your browser, select file save-as, and save this page as a file.

Double-click that file to open it in a browser on any offline computer.

Alternatively, download the file from the repository - https://github.com/iancoleman/bip39

This project is 100% open-source code

Get the source code from the repository - https://github.com/iancoleman/bip39