Distributed Unique ID Generator

64-bit Snowflake Binary Packing Map Generate an ID to light the fields

0 sign (1b) 41-bit timestamp (ms since custom epoch) 10-bit identity (DC+W) 12-bit sequence

41b timestamp (~69 yrs) 10b datacenter + worker (1,024 nodes) 12b per-ms sequence (4,096 IDs/ms)

1. Timestamp41 BITS

current ms—

epoch delta—

custom epoch2024-01-01

in: clock (IN:1)out: <<22 (OUT:2)

2. Node identity10 BITS

datacenter07 / 31

worker12 / 31

packed bits00111 01100

in: lease (IN:2)out: <<12 (OUT:2)

3. Sequence12 BITS

counter0

capacity0 / 4096

next millisecondresets to 0

in: 10b node (IN:1)out: 12b seq (OUT:1)

4. Assembled ID64 BITS

decimal—

statuswaiting for request

Decoded bit segments

timestamp: — datacenter: 07 worker: 12 sequence: 0

in: OR pipe (IN:1)out: int64 (OUT:1)

Identity allocationSTARTUP

registry leaseDC-07 / W-12

runtime locknone

Unique node bits are assigned before requests arrive.

in: boot (IN:1)out: lease (OUT:1)

Clock guardSAFETY

last accepted—

rollback policyreject / wait

Never reuse a prior millisecond on this worker.

in: ntp (IN:1)out: guard (OUT:1)

Ready — Generate an ID first to enable same-millisecond, capacity, and rollback scenarios.