Distributed Unique ID Generator

One generator, assembled in order

Each request moves through timestamp → identity → sequence → one signed 64-bit integer.

64-bit packing mapGenerate an ID to light the fields

0 reserved sign bit41-bit timestamp10-bit identity12-bit sequence

timestampdatacenter + workerper-ms sequence

1. Timestamp41 BITS

current ms—

epoch delta—

custom epoch2024-01-01

2. Node identity10 BITS

datacenter07 / 31

worker12 / 31

packed bits00111 01100

3. Sequence12 BITS

counter0

capacity0 / 4096

next millisecondresets to 0

4. Assembled ID64 BITS

decimal—

statuswaiting for request

Show decoded fields

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

Identity allocationSTARTUP

registry leaseDC-07 / W-12

runtime locknone

Unique node bits are assigned before requests arrive.

Clock guardSAFETY

last accepted—

rollback policyreject / wait

Never reuse a prior millisecond on this worker.

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