Moments

A random instant inside a window you define.

numbers.timestamp · v1 · renderer text

2095-12-25T01:39:18Z
2083-10-02T13:29:05Z
2074-04-21T12:22:12Z
2089-11-21T21:29:02Z
2003-02-08T17:50:25Z

Controls · from schema()

How many

1 500

From (UTC)

YYYY-MM-DD, optionally with a time. Parsed strictly — “now” and “next friday” are rejected, because a generator that reads the clock cannot be replayed.

To (UTC)

Round to the nearest

Format

Order

Entropy source

Picking a source changes the story on the receipt, never the quality: anything below class A is mixed with the OS CSPRNG before it reaches you. This result actually came from NIST Randomness Beacon.

seed token D88SSN9FRJKZW08X14SD9VKJHM

Re-render keeps this token. Generate replaces it. That is the whole idea.

entropy in

16 bytes

stream used

24 bytes

entropy out

157.8 bits

rejections

duration

154 µs

window from

2000-01-01T00:00:00Z

window to

2100-01-01T00:00:00Z

window days

36,525

slots

3,155,760,001

granularity

Second

window understood

yes

Seed receipt

Class B · Public beacon cached

NIST Beacon pulse #1,941,315 — chained to every pulse before it, and signed.

Published openly — anyone can look this value up after the fact.

source: NIST Randomness Beacon
observed: 2026-09-14T17:21:00+00:00
latency: 0ms
mixed with: csprng — always

https://beacon.nist.gov/beacon/2.0/chain/2/pulse/1941315 ↗

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The token is the seed, so this link recomputes the result rather than looking it up. No database, and it works for as long as v1 does.

This page and /api/v1/g/numbers.timestamp run the same code. There is no private endpoint.

Moments

Result

Measurements

Seed receipt

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