qikcoin

// Copyright (c) 2013-2014 Conformal Systems LLC.
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.

from:
https://github.com/conformal/btcwire/blob/master/msgblock_test.go#L511-L550

// Block one serialized bytes.
var blockOneBytes = []byte{
	0x01, 0x00, 0x00, 0x00, // Version 1

qikcoin

from:
https://en.bitcoin.it/wiki/Block_hashing_algorithm

<?PHP

function SwapOrder($in){

        $Split = str_split(strrev($in));
        $x='';
        for ($i = 0; $i < count($Split); $i+=2){

qikcoin

from:
https://en.bitcoin.it/wiki/Block_hashing_algorithm

this python code will calculate the hash of the block with the smallest hash as of June 2011, Block 125552. The header is built from the six fields described above, concatenated together as little-endian values in hex notation:

 >>> import hashlib
  >>> header_hex = ("01000000" +
    "81cd02ab7e569e8bcd9317e2fe99f2de44d49ab2b8851ba4a308000000000000" +
    "e320b6c2fffc8d750423db8b1eb942ae710e951ed797f7affc8892b0f1fc122b" +
    "c7f5d74d" +

qikcoin

from:
https://code.google.com/p/blockchain/source/browse/trunk/BlockChain.cpp

inline uint32_t readVariableLengthInteger(void)
	{
		uint32_t ret = 0;

		uint8_t v = readU8();
		if ( v < 0xFD ) // If it's less than 0xFD use this value as the unsigned integer
		{

qikcoin

from:
http://godoc.org/github.com/conformal/btcscript

const (
    OP_FALSE               byte = 0 // AKA OP_0
    OP_0                        = 0
    OP_DATA_1                   = 1
    OP_DATA_2                   = 2
    OP_DATA_3                   = 3
    OP_DATA_4                   = 4

qikcoin

from:
https://github.com/conformal/btcwire/blob/master/common.go

// readVarInt reads a variable length integer from r and returns it as a uint64.
func readVarInt(r io.Reader, pver uint32) (uint64, error) {
	b := make([]byte, 8)
	_, err := io.ReadFull(r, b[0:1])
	if err != nil {
		return 0, err
	}

qikcoin

http://blockr.io/block/info/210965
blk0003.dat

from:
http://2.bp.blogspot.com/-DaJcdsyqQSs/UsiTXNHP-0I/AAAAAAAATC0/kiFRowh-J18/s1600/blockchain.png
http://codesuppository.blogspot.com/2014/01/how-to-parse-bitcoin-blockchain.html
http://www.righto.com/2014/02/bitcoins-hard-way-using-raw-bitcoin.html

f9beb4d9		uint32_t:magicID:4 bytes

qikcoin

Verifying myself: My Bitcoin username is +qikcoin. https://onename.io/qikcoin

qikcoin

Keybase proof

I hereby claim:

• I am qikcoin on github.
• I am qikcoin (https://keybase.io/qikcoin) on keybase.
• I have a public key whose fingerprint is 040E 5AC6 5783 64F0 0D46 1E00 6FB0 4365 A498 30CB

To claim this, I am signing this object: