PascalCoin

Pascal Coin: P2P Cryptocurrency without need of historical operations.

Copyright (c) 2016 Albert Molina

THIS IS EXPERIMENTAL SOFTWARE. Use it for educational purposes only.

This software is a Node of the Pascal Coin P2P Cryptocurrency.
It can be used to Mine and Explore blocks and operations.

Distributed under the MIT software license, see the accompanying file
LICENSE or visit http://www.opensource.org/licenses/mit-license.php.

This product includes software developed by the OpenSSL Project and Denis
Grinyuk (https://github.com/Arvur/OpenSSL-Delphi), and some
cryptographic functions inspirated in code written by Ladar Levison and
Marco Ferrante.
Original source code is written in Pascal Language and is available at
https://github.com/PascalCoin/PascalCoin

HOW TO COMPILE:

See instructions at GitHub Wiki: https://github.com/PascalCoin/PascalCoin/wiki

Enjoy Pascal Coin!

Donations

If you like it, consider a donation using BitCoin: 16K3HCZRhFUtM8GdWRcfKeaa6KsuyxZaYk

Also, consider a donation at PascalCoin development account: "0-10"

History:

Build 1.3.0.0 - 2016-11-24

• JSON-RPC modifications:
  • New param "b58_pubkey", can be used instead of "enc_pubkey": b58_pubkey is a Base58 encoded public key with checksum, is the value that Wallet exports/imports public key
  • New JSON object type Public Key: "name","can_use","enc_pubkey","b58_pubkey","ec_nid","x" and "y" for each public key
  • Added params "start" and "max" to "getaccountoperations". By default deep=100, max=100 and start=0, so will return last 100 operations made to an account
  • Added params "start" and "max" to "getblockoperations". By default max=100 and start=0, so will return last 100 operations made to a block
  • Added params "start" and "max" to "getwalletaccounts". By default max=100 and start=0, so will return first 100 accounts of the wallet
  • Added params "start" and "max" to "getwalletpubkeys". By default max=100 and start=0, so will return first 100 public keys of the wallet
  • Will return a Public key JSON object
  • Method "decodepubkey" allows params "enc_pubkey" or "b58_pubkey" (if used together, returns error if not match)
  • Will return a Public key JSON object
  • Method "changekey" allows params "new_enc_pubkey" or "new_b58_pubkey" (if used together, returns error if not match)
  • Method "getwalletaccounts" allows params "enc_pubkey" or "b58_pubkey" (if used together, returns error if not match)
  • Method "getwalletaccountscount" allows params "enc_pubkey" or "b58_pubkey" (if used together, returns error if not match)
  • Method "getwalletcoins" allows params "enc_pubkey" or "b58_pubkey" (if used together, returns error if not match)
    
  • Method "payloadencrypt" allows params "enc_pubkey" or "b58_pubkey" when payload_method="pubkey" (if used together, returns error if not match)
    
  • Method "addnewkey" changed. Does not return an HEXASTRING with enc_pubkey, now returns a public key JSON object
  • New methods:
  • Method "changekeys". Similar to "changekey" but for multiple accounts at param "accounts" as a coma separated string (ex: "accounts"="1248,1753,85056"). Returns a JSON object with result information
  • Method "lock" to lock wallet. Returns true if locked, returns false if wallet has no password (an empty string, must put a new password prior to lock)
  • New method "getwalletpubkey". Search for "enc_pubkey" or "b58_pubkey" and returns a Public key JSON object
• Corrected a issue saving last 5 .bank files
• Improved protections for .bank corruption files
• Added "open data folder" button on options form
• Other minor changes

Build 1.2.0.0 - 2016-11-16

• Account checksum values modified to be more easy and more distributed: Checksum = ((N * 101) MOD 89)+10
• Allow find operations by "ophash"
• Show Operation "ophash" in operation payload decoder
• Added param "enc_pubkey" to "getwalletaccounts" JSON-RPC method to return only accounts from this public key
• Added params "pow" and "sbh" to "nodestatus" JSON-RPC method
• Added method "getwalletaccountscount" returning accounts count of the entire wallet or for a single "enc_pubkey"
• Added method "getwalletcoins" returning coins of the entire wallet or for a signle "enc_pubkey"
• Modified seed nodes distribution to send only checked IP nodes
• Corrected invalid operation block index when showing account operations

Build 1.1.0.0 - 2016-11-03

• JSON-RPC Server included
• Minor changes

Build 1.0.9.0 - 2016-10-21

• Corrected a BUG (BUG-101) that causes blocking connections when received more than 100 connections, causing "alone in the world" after a cert period time.
• It's necessary to update because new version will refuse old versions to make network stable.

Build 1.0.8.0 - 2016-10-20

• Cross compatible
• Can compile with Delphi or Lazarus (Free Pascal)
• New storage system. No more access database
• Network hashrate calculation

Build 1.0.7.0 - 2016-10-10

• Introducing basic JSON-RPC to allow GPU miners development (Third party).
• See file "HOWTO_DEVELOP_GPU_MINER_FOR_PASCALCOIN.txt"
• No more CPU mining due exists GPU mining

Build 1.0.6.0 - 2016-10-04

• Memory leaks corrections
• Introducing net protocol 2-3
• Source code modified, next build will be compiled with Lazarus and FPC

Build 1.0.5.0 - 2016-09-21

• Massive operations, selecting multiple accounts
• Filter accounts by balance
• Correct operations explorer order of operations for each block (descending order)
• Minor changes

Build 1.0.4.0 - 2016-09-16

• IMPORTANT: Introducing net protocol changes: Must update!
• More and more and more stable
• Prevents "Alone in the world" if everybody is updated ;-)
• Invalid local time detector with corrections
• IP nodes configurator

Build 1.0.3.0 - 2016-09-08

• Important changes to database
• Peer cache
• Issues with Connections
• More stable
• Miner key selector
• Invalid local time detector

Build 1.0.2.0 - 2016-08-31

• Improved hashing speed
• Allow mining without opening external ports
• Choose how many CPU's want to mine
• Show real-time pending operations waiting to be included in the block
• More stable
• Some miner modifications

Build 1.0.1.0 - 2016-08-12

• Included an option to Import/Export Wallet keys file
• Some miner modifications

Build 1.0.0.0 - 2016-08-11

• First stable version.
• Created with Genesis block hardcoded
• Published at same time than Genesis block. NO PREMINE