Tezos fundraiser python experiments

fpx.py

import bitcoin
from pyblake2 import blake2b
import py2specials
import hashlib

def foundation_bitcoin_keys(): 
        return [
        '\x02\xc0T!\xaa\x00\x13\xee\xd38T#\xb6<\xd2\x89' +
        '\xc3BR\x118\xaa\xffj\x91U\xb3\xc7\xc8t\xc3\x1e\xa9',
        '\x03\xb3\xb1|\xe2\x13\xe4\xed\xb9\xf1\x7f\x0e\x11' +
        '\xf5h\x80\xa8\x96r\xd2 4\x83\xbb\x7fu\xb1\x1a%_\x08\xdc\x96'
       ]

def fundraiser_script(tezos_pkh):
    return bitcoin.serialize_script([tezos_pkh, 117,  2] + foundation_bitcoin_keys() + [2, 174])

def fundraiser_address(tezos_pkh): 
    return bitcoin.p2sh_scriptaddr(fundraiser_script(tezos_pkh))

def fundraiser_160(tezos_pkh):
    return bitcoin.bin_hash160(fundraiser_script(tezos_pkh))


def tz_pkh_2_address(tezos_pkh):
    return py2specials.bin_to_b58check(digest,magicbyte=434591)

def tz_address_2_pkh(address):
    return py2specials.changebase(address, 58,256)[3:23]

def tz_address_2_fundraiser_address(address):
    return fundraiser_address(tz_address_2_pkh(address))

def tz_address_2_fundraiser_160(address):
    return fundraiser_160(tz_address_2_pkh(address))

#---------------------------------------------------
# tests

def t1():
    print 'Testing a fundraiser hash160 is equal to the base58 encoded address hash of the same'    
    tezos_pkh = '0000000000000000000000000000000000000000'.decode('hex')
    if fundraiser_address(tezos_pkh) == py2specials.bin_to_b58check(fundraiser_160(tezos_pkh),5):
        print 'Pass'
    else:
        print 'Fail'
    print '\n'

def t2():
    print 'Demonstrating how fundraiser payment script bytes are packed:'
    print fundraiser_script('0000000000000000000000000000000000000000'.decode('hex')).encode('hex')
    print fundraiser_script('1111111111111111111111111111111111111111'.decode('hex')).encode('hex')
    print '\n'

def t3():
    print 'Testing dummy allocation mapping'
    
    # generate fundraiser payment address / 160 values for 'unknown' tezos public key hashes:
    #print fundraiser_160('0000000000000000000000000000000000000001'.decode('hex')).encode('hex')
    #print fundraiser_160('0000000000000000000000000000000000000002'.decode('hex')).encode('hex')
    #print fundraiser_160('0000000000000000000000000000000000000003'.decode('hex')).encode('hex')
    #print fundraiser_160('0000000000000000000000000000000000000004'.decode('hex')).encode('hex')
 
    allocations = {
    '4917f875eed47f7c0b9eafe6527c32b2bb4b6d23'.decode('hex'):1,
    'd048f95b82c784ab66277ad5b2b932822655cb9e'.decode('hex'):2,
    'b487f4b286f82d96aa0540c02e8d765760aedff3'.decode('hex'):3,
    'e2d133eeef2f8c76da487da743a423164f9aa919'.decode('hex'):4
    }

    def getAllocation(tzpkh): 
        return allocations[fundraiser_160(tzpkh)]

    pkh1 = '0000000000000000000000000000000000000002'.decode('hex')
    print 'User submitted pkh: ' + pkh1.encode('hex')
    print 'This resolves to payment address ' + fundraiser_address(pkh1) + " / not needed on chain "
    print 'With hash160: ' +  fundraiser_160(pkh1).encode('hex')
    print 'User Funds in dummy allocation: ' , getAllocation(pkh1)

t2()
t3()