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README: legacy tutorial for client connect to worldland mainnet
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Connect_LVE_mainnet.md
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Connect_LVE_mainnet.md
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# ETH-ECC client launch and LVE mainnet connection
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Project PI : Heung-No Lee
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Email : heungno@gist.ac.krk
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Writer : Seungmin Kim(김승민), Hyoungsung Kim(김형성), Gyeongdeok Maeng(맹경덕)
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Email : seungminkim@gist.ac.kr
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Github for this example : https://github.com/cryptoecc/ETH-ECC
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For more information : [INFONET](https://heungno.net/)
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- ETH-ECC is an Ethereum blockchain which INFONET has made public at github. The new characteristic of this blockchain is to enable ECCPoW a new protocol for time-varying proof-of-work generation system.
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- This package is designed to run in Linux-environment. For this you need to download and install Linux-mint (see below). If you are Windows users, you need to install the Linux-mint first. If you are Linux users, you may skip this part.
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- Under the assumption that you are in a Linux environment, you may follow this note to proceed. This note is to illustrate how to locate the ETH-ECC package at the github link, download, install, and run ETH-ECC in a local computer.
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---
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Contents
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1. [Environment](#1-environment)
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1. [Download](#11-downloading)
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2. [Installation](#12-installation)
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2. [Running ETH-ECC and connecting to LVE mainnet](#2-running-eth-ecc-and-connecting-to-lve-mainnet)
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3. [Testing ETH-ECC](#3-testing-eth-ecc)
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1. [Basic tests](#31-basic-tests)
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2. [Making a transaction for test in private network](#32-making-a-transaction-for-test-in-private-network)
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---
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## 1. Environment
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For Windows, please visit [Windows instruciton](https://github.com/cryptoecc/ETH-ECC/blob/master/docs/eccpow%20windows%20instuction/Windows%20install%20instruction.md) before start.
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ETH-ECC package uses the follow two environment
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- Amazon Linux 2 Kernel 5.10 or Linux Ubuntu 18.04
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- Go (version 1.17 or later) develope language
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You can follow two step below to download ETH-ECC and install(build)
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### 1.1 Downloading
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You can download ETH-ECC by cloning ETH-ECC repository.
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```
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$ git clone https://github.com/cryptoecc/ETH-ECC
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```
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### 1.2 Installation
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For building ETH-ECC, it requires Go (version 1.18 or later). You can install them using following commands.
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```
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$ sudo apt update
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$ sudo apt install snapd
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$ sudo snap install go --classic
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```
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Then Go will be installed
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Check version of Go (version 1.18 or later)
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```
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$ go verison
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```
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Once, dependencies are installed, You can install ETH-ECC using the following command.
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```
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$ make geth
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```
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or, to build the full suite of utilities:
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```
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$ make all
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```
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## 2. Running ETH-ECC and connecting to LVE mainnet
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First, you'll need to make a directory to store block information. For example `ETHECC_TEST` directory. Then move to `/ETH-ECC/build/bin`, and follow this.
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```
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$ ./geth --lve --datadir [Your_own_storage] console
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```
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In my case,
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```
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(EXAMPLE) $ ./geth --lve --datadir /home/Documents/ETHECC_TEST console
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```
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it returns data that looks like:
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```
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INFO [01-02|14:59:12.563] Starting Geth on Lve ...
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INFO [01-02|14:59:12.565] Maximum peer count ETH=50 LES=0 total=50
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INFO [01-02|14:59:12.566] Smartcard socket not found, disabling err="stat /run/pcscd/pcscd.comm: no such file or directory"
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INFO [01-02|14:59:12.568] Set global gas cap cap=50,000,000
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INFO [01-02|14:59:12.570] Allocated trie memory caches clean=154.00MiB dirty=256.00MiB
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INFO [01-02|14:59:12.570] Allocated cache and file handles database=/home/lvminer-5/deok/TEST/ETHECC_TEST/geth/chaindata cache=512.00MiB handles=524,288
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INFO [01-02|14:59:12.676] Opened ancient database database=/home/lvminer-5/deok/TEST/ETHECC_TEST/geth/chaindata/ancient/chain readonly=false
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INFO [01-02|14:59:12.676] Disk storage enabled for ethash caches dir=/home/lvminer-5/deok/TEST/ETHECC_TEST/geth/ethash count=3
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INFO [01-02|14:59:12.676] Disk storage enabled for ethash DAGs dir=/home/lvminer-5/.ethash count=2
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INFO [01-02|14:59:12.676] Initialising Ethereum protocol network=12345 dbversion=<nil>
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INFO [01-02|14:59:12.677] Writing custom genesis block
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INFO [01-02|14:59:12.703] Persisted trie from memory database nodes=354 size=50.23KiB time=2.70146ms gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=0.00B
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INFO [01-02|14:59:12.706]
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INFO [01-02|14:59:12.706] ---------------------------------------------------------------------------------------------------------------------------------------------------------
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INFO [01-02|14:59:12.706] Chain ID: 12345 (lve)
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```
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You can check ChainID is 12345.
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You are now connected to the LVE network!
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## 3. Testing ETH-ECC
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1. Basic tests
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- making an account, mining block and checking result of mining
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2. Making a transaction
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3. (Appendix) Block generation time log
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### 3.1 Basic tests
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In this test, we will follow 3 steps
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- Generate account
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- Check account's balance
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- Mining
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#### Generating account
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Generating new account:
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```
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> personal.newAccount("Alice")
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```
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returns data that looks like:
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```
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INFO [08-06|21:33:36.241] Your new key was generated address=0xb8C941069cC2B71B1a00dB15E6E00A200d387039
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WARN [08-06|21:33:36.241] Please backup your key file! path=/home/hskim/Documents/geth-test/keystore/UTC--2019-08-06T12-33-34.442823142Z--b8c941069cc2b71b1a00db15e6e00a200d387039
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WARN [08-06|21:33:36.241] Please remember your password!
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"0xb8c941069cc2b71b1a00db15e6e00a200d387039"
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```
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We generated the address of Alice:`0xb8C941069cC2B71B1a00dB15E6E00A200d387039`. You can check the account using the following command.
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```
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> eth.accounts
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["0xb8c941069cc2b71b1a00db15e6e00a200d387039"]
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```
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we will use it as miner's address so block generation reward will be sent to Alice's address that "0xb8c941069cc2b71b1a00db15e6e00a200d387039"
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#### Check account's balance
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Before mining, To calculate the amount of ethers mined, you have to check current balance of miner's account. You can check the balance by the following commands.
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```
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> eth.getBalance("0xb8c941069cc2b71b1a00db15e6e00a200d387039")
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0
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```
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Or use
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```
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> eth.getBalance(eth.accounts[0])
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0
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```
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#### Mining
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First we have to set miner's address. For this, we will use 3 commands
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- miner.setEtherbase(address)
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- It sets miner's address. Mining reward will be sent to this account
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- miner.start(number of threads)
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- Start mining. You can set how many threads you will use. I will use 1 thread
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- If your CPU has enough core, you can use higher number. It will work faster.
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- miner.stop()
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- Stop mining
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Setting miner's address:
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```
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> miner.setEtherbase("0xb8c941069cc2b71b1a00db15e6e00a200d387039")
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true
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```
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Starting mining:
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```
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> miner.start(1)
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null
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INFO [08-06|21:42:38.198] Updated mining threads threads=1
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INFO [08-06|21:42:38.198] Transaction pool price threshold updated price=1000000000
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null
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> INFO [08-06|21:42:38.198] Commit new mining work number=1 sealhash=4bb421…3f463a uncles=0 txs=0 gas=0 fees=0 elapsed=325.066µs
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INFO [08-06|21:42:40.752] Successfully sealed new block number=1 sealhash=4bb421…3f463a hash=4b2b78…4808f6 elapsed=2.554s
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INFO [08-06|21:42:40.752] 🔨 mined potential block number=1 hash=4b2b78…4808f6
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.
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.
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.
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INFO [08-06|21:42:56.174] 🔨 mined potential block number=9 hash=2faebb…8be693
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INFO [08-06|21:42:56.174] Commit new mining work number=10 sealhash=384aa6…cb0596 uncles=0 txs=0 gas=0 fees=0 elapsed=179.463µs
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```
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Stopping mining:
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```
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> miner.stop()
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null
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```
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After mining, check the amount of mined ethers:
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```
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> eth.getBalance("0xb8c941069cc2b71b1a00db15e6e00a200d387039")
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45000000000000000000
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```
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Exactly wei, not ether that `10^18 wei` is equal to `1 ether`. wei is small unit of ether like satoshi of bitcoin. In order to show the balance in ether use the below command.
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```
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> web3.fromWei(eth.getBalance("0xb8c941069cc2b71b1a00db15e6e00a200d387039"), "ether")
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45
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```
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### 3.2 Making a transaction for test in private network
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In this section, we create another account to generate a transaction and send ether. We will make a new account(Bob) and send ether from miner(Alice) to new account(Bob)
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Generating new account:
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```
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> personal.newAccout("Bob")
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INFO [08-06|22:00:23.416] Your new key was generated address=0xf39Cf42Cd233261cd2b45ADf8fb1E5A1e61A6f90
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WARN [08-06|22:00:23.416] Please backup your key file! path=/home/hskim/Documents/geth-test/keystore/UTC--2019-08-06T13-00-21.621172635Z--f39cf42cd233261cd2b45adf8fb1e5a1e61a6f90
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WARN [08-06|22:00:23.416] Please remember your password!
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"0xf39cf42cd233261cd2b45adf8fb1e5a1e61a6f90"
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> eth.getBalance("0xf39cf42cd233261cd2b45adf8fb1e5a1e61a6f90")
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0
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```
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I got account of Bob:`0xf39cf42cd233261cd2b45adf8fb1e5a1e61a6f90`. Alice will send ether to Bob's account. Before sending, we have to unlock fowarding account(Alice).
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Status of Alice's account.
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```
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> personal.listWallets[0].status
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"Locked"
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```
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Unlocking:
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```
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> web3.personal.unlockAccount("0xb8c941069cc2b71b1a00db15e6e00a200d387039")
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Unlock account 0xb8c941069cc2b71b1a00db15e6e00a200d387039
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```
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Alice's address is `0xb8c941069cc2b71b1a00db15e6e00a200d387039`. However we have to type a `Passphrase` that is `Alice`.
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```
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Passphrase: Alice
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true
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```
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Now Alice's account is unlocked. Then let's make transaction that sending 5 ether from Alice to Bob.
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```
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> eth.sendTransaction({from: "0xb8c941069cc2b71b1a00db15e6e00a200d387039", to: "0xf39cf42cd233261cd2b45adf8fb1e5a1e61a6f90", value: web3.toWei(5, "ether")})
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```
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Or we can initialize these using variable
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```
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> from = "0xb8c941069cc2b71b1a00db15e6e00a200d387039"
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> to = "0xb8c941069cc2b71b1a00db15e6e00a200d387039"
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> eth.sendTransaction({from: from, to: to, value: web3.toWei(5, "ether")})
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```
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then those returns data that looks like:
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```
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INFO [08-06|22:16:09.274] Setting new local account address=0xb8C941069cC2B71B1a00dB15E6E00A200d387039
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INFO [08-06|22:16:09.275] Submitted transaction fullhash=0x926f1bb71d5b48a306e6cde2d45c01f8af2107febf94b166a7e5f8e025dc8adc recipient=0xf39Cf42Cd233261cd2b45ADf8fb1E5A1e61A6f90
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"0x926f1bb71d5b48a306e6cde2d45c01f8af2107febf94b166a7e5f8e025dc8adc"
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```
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Checking a pending transactions
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```
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> eth.pendingTransactions
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[{
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blockHash: null,
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blockNumber: null,
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from: "0xb8c941069cc2b71b1a00db15e6e00a200d387039",
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gas: 21000,
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gasPrice: 1000000000,
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hash: "0x926f1bb71d5b48a306e6cde2d45c01f8af2107febf94b166a7e5f8e025dc8adc",
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input: "0x",
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nonce: 0,
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r: "0x70484271bdc85f7233e715423d8d0be5c669a323385b5ec0ff080a52cf3c654c",
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s: "0x1b55a792995f61128c10a48ce1e0869893c863d38489f574d84ae3a96b031cef",
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to: "0xf39cf42cd233261cd2b45adf8fb1e5a1e61a6f90",
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transactionIndex: null,
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v: "0x42",
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value: 5000000000000000000
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}]
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```
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However, the transaction has not yet been written to the block., cause we didn't mine any block to store the pending transaction.
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```
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> eth.getBalance("0xb8c941069cc2b71b1a00db15e6e00a200d387039")
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45000000000000000000
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> eth.getBalance("0xf39cf42cd233261cd2b45adf8fb1e5a1e61a6f90")
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0
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```
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Mining the next block:
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```
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> miner.start(1)
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INFO [08-06|22:19:53.061] Updated mining threads threads=1
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INFO [08-06|22:19:53.061] Transaction pool price threshold updated price=1000000000
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null
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> INFO [08-06|22:19:53.062] Commit new mining work number=10 sealhash=f69cfb…273c0d uncles=0 txs=0 gas=0 fees=0 elapsed=265.557µs
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INFO [08-06|22:19:53.062] Commit new mining work number=10 sealhash=a018f5…65f494 uncles=0 txs=1 gas=21000 fees=2.1e-05 elapsed=1.022ms
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INFO [08-06|22:19:54.718] Successfully sealed new block number=10 sealhash=a018f5…
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.
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.
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.
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INFO [08-06|22:20:05.086] 🔨 mined potential block number=16 hash=e7688a…09ed64
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INFO [08-06|22:20:05.086] Commit new mining work number=17 sealhash=6b297d…b76b19 uncles=0 txs=0 gas=0 fees=0 elapsed=252.945µs
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> miner.stop()
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null
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```
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Last time Alice mined 9 blocks and this time mined 7 blocks more. So We can expect Alice has 75 ether (80 ether block reward - 5 ether sent to Bob = 75 ether). Let's check.
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```
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> eth.pendingTransactions
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[]
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```
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There is no pending transaction. It means that Alice and Bob's transaction is done.
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Let's see the balance of them
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```
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> eth.getBalance("0xb8c941069cc2b71b1a00db15e6e00a200d387039")
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75000000000000000000
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> eth.getBalance("0xf39cf42cd233261cd2b45adf8fb1e5a1e61a6f90")
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5000000000000000000
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```
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As we expected, Alice has 75 ether and Bob has 5 ether.
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---
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If there are errors or you want to add more details, please make a issue in my github or official ETH-ECC gitbub
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Github :
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- Official : https://github.com/cryptoecc/ETH-ECC
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