hashlib.sha256(
    '{}-{}-{}-{}'.format(
        crypto_assets.blockchain[2].index_number,
        crypto_assets.blockchain[2].timestamp,
        crypto_assets.blockchain[2].transactions,
        'ea445dd865be140f227a035a818d86398ff9755a36d0363affd239d8701ab193'
    ).encode('utf-8')
).hexdigest()