transaction inputs does not have prev_out field

transaction inputs does not have prev_out field

I found some transaction inputs does not contain prev_out field, i.e. it does not have input address. It only has an output address. Does this mean this kind of transactions records the activities of mining new coins?

e.g.

'tx': [{'hash': '2b1f06c2401d3b49a33c3f5ad5864c0bc70044c4068f9174546f3cfc1887d5ba', 'inputs': [{'script': '04ffff001d0138', 'sequence': 4294967295, 'witness': ''}], 'lock_time': 0, 'out': [{'addr': '1HwmP33SaknLYShXfjVU8KmVThU3JiuVgH', 'n': 0, 'script': '41045e071dedd1ed03721c6e9bba28fc276795421a378637fb41090192bb9f208630dcbac5862a3baeb9df3ca6e4e256b7fd2404824c20198ca1b004ee2197866433ac', 'spent': False, 'tx_index': 15066, 'type': 0, 'value': 5000000000}],

while for another transation:

{'hash': 'ee475443f1fbfff84ffba43ba092a70d291df233bd1428f3d09f7bd1a6054a1f', 'inputs': [{'prev_out': {'addr': '1CfD77hupeUvFwBPxZ2fA8iyWmVwQY22oh', 'n': 1, 'script': '76a9147fe34b97aeff4ab754770be5c8f12e2e95332fd488ac', 'spent': True, 'tx_index': 8845778, 'type': 0, 'value': 10212000000}, 'script': '483045022100e5e4749d539a163039769f52e1ebc8e6f62e39387d61e1a305bd722116cded6c022014924b745dd02194fe6b5cb8ac88ee8e9a2aede89e680dcea6169ea696e24d52012102b4b754609b46b5d09644c2161f1767b72b93847ce8154d795f95d31031a08aa2', 'sequence': 4294967295, 'witness': ''}], ...

the second one has a prev_out field while the first one does not

http://ift.tt/2nqKLBR