'''

# tag::example1[]

>>> from helper import encode_base58_checksum

>>> h160 = bytes.fromhex('74d691da1574e6b3c192ecfb52cc8984ee7b6c56')

>>> print(encode_base58_checksum(b'\x05' + h160))

3CLoMMyuoDQTPRD3XYZtCvgvkadrAdvdXh

# end::example1[]

# tag::example2[]

>>> from helper import hash256

>>> modified_tx = bytes.fromhex('0100000001868278ed6ddfb6c1ed3ad5f8181eb0c7a38\

5aa0836f01d5e4789e6bd304d87221a000000475221022626e955ea6ea6d98850c994f9107b036\

b1334f18ca8830bfff1295d21cfdb702103b287eaf122eea69030a0e9feed096bed8045c8b98be\

c453e1ffac7fbdbd4bb7152aeffffffff04d3b11400000000001976a914904a49878c0adfc3aa0\

5de7afad2cc15f483a56a88ac7f400900000000001976a914418327e3f3dda4cf5b9089325a4b9\

5abdfa0334088ac722c0c00000000001976a914ba35042cfe9fc66fd35ac2224eebdafd1028ad2\

788acdc4ace020000000017a91474d691da1574e6b3c192ecfb52cc8984ee7b6c5687000000000\

1000000')

>>> s256 = hash256(modified_tx)

>>> z = int.from_bytes(s256, 'big')

>>> print(hex(z))

0xe71bfa115715d6fd33796948126f40a8cdd39f187e4afb03896795189fe1423c

# end::example2[]

# tag::example3[]

>>> from ecc import S256Point, Signature

>>> from helper import hash256

>>> modified_tx = bytes.fromhex('0100000001868278ed6ddfb6c1ed3ad5f8181eb0c7a38\

5aa0836f01d5e4789e6bd304d87221a000000475221022626e955ea6ea6d98850c994f9107b036\

b1334f18ca8830bfff1295d21cfdb702103b287eaf122eea69030a0e9feed096bed8045c8b98be\

c453e1ffac7fbdbd4bb7152aeffffffff04d3b11400000000001976a914904a49878c0adfc3aa0\

5de7afad2cc15f483a56a88ac7f400900000000001976a914418327e3f3dda4cf5b9089325a4b9\

5abdfa0334088ac722c0c00000000001976a914ba35042cfe9fc66fd35ac2224eebdafd1028ad2\

788acdc4ace020000000017a91474d691da1574e6b3c192ecfb52cc8984ee7b6c5687000000000\

1000000')

>>> h256 = hash256(modified_tx)

>>> z = int.from_bytes(h256, 'big') # <1>

>>> sec = bytes.fromhex('022626e955ea6ea6d98850c994f9107b036b1334f18ca8830bfff\

1295d21cfdb70')

>>> der = bytes.fromhex('3045022100dc92655fe37036f47756db8102e0d7d5e28b3beb83a\

8fef4f5dc0559bddfb94e02205a36d4e4e6c7fcd16658c50783e00c341609977aed3ad00937bf4\

ee942a89937')

>>> point = S256Point.parse(sec)

>>> sig = Signature.parse(der)

>>> print(point.verify(z, sig))

True

# end::example3[]

'''