def min_uuid_from_time(timestamp):
    return uuid_from_time(timestamp, 0x808080808080, 0x80)  # Cassandra does byte-wise comparison; fill with min signed bytes (0x80 = -128)
Generates the minimum TimeUUID (type 1) for a given timestamp, as compared by Cassandra.
dataset/ETHPy150Open datastax/python-driver/cassandra/util.py/min_uuid_from_time