# Moments — Randomly

> A random instant inside a window you define. One of 63 generators at [Randomly](https://randomly.cluxnei.dev), a library of random generators seeded from verifiable real-world entropy. Free HTTP API, no key, no signup.

## `numbers.timestamp` — Moments

A random instant inside a window you define.

| | |
|---|---|
| **Key** | `numbers.timestamp` |
| **Module** | `numbers` |
| **Version** | `1` — a permalink carries this, and a replay against a different version returns `409` rather than something else |
| **Formats** | `application/json`, `text/plain` |
| **Studio** | https://randomly.cluxnei.dev/g/numbers/timestamp |
| **API** | `GET https://randomly.cluxnei.dev/api/v1/g/numbers.timestamp` |

`value` is the result itself — one value, or a list of them; `display` is the same thing rendered as a single human-readable string.

| Parameter | Type | Default | Accepts | What it does |
|---|---|---|---|---|
| `count` | int | `5` | `1` – `500` | How many |
| `from` | string | `2000-01-01T00:00:00` | up to 32 characters | 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` | string | `2100-01-01T00:00:00` | up to 32 characters | To (UTC) |
| `granularity` | enum | `second` | `second`, `minute`, `hour`, `day` | Round to the nearest |
| `format` | enum | `iso8601` | `iso8601`, `unix`, `rfc2822`, `date`, `human` | Format |
| `sort` | enum | `none` | `none`, `asc`, `desc` | Order |

Out-of-range numbers are **clamped, not rejected**, so a request never fails for being
ambitious — but it may not do what you meant. Unknown keys are dropped and missing ones
fall back to the defaults above.

```bash
curl -s 'https://randomly.cluxnei.dev/api/v1/g/numbers.timestamp?count=5&from=2000-01-01T00%3A00%3A00&to=2100-01-01T00%3A00%3A00' -H 'Accept: text/plain'
```

## The receipt

Every result carries one, naming the physical source of the randomness and linking to the
third party's own record of it:

```json
"receipt": {
  "source": "seismic",
  "source_label": "USGS Seismic Feed",
  "class": "C",
  "caveat": "Carries only tens of bits of genuine surprise. Always mixed with the OS CSPRNG.",
  "narrative": "A magnitude 3.6 earthquake, 67 km N of Culebra, Puerto Rico, 39.6 km down — 52 minutes ago.",
  "proof_url": "https://earthquake.usgs.gov/earthquakes/eventpage/us7000th33",
  "mixed_with_csprng": true,
  "degraded": false
}
```

Pick the source with `?source=`, or leave it at the default `auto`:

- **Class A** (Cryptographic) — `csprng`, `anu-qrng`, `random-org`
- **Class B** (Public beacon) — `nist-beacon`, `drand`, `bitcoin`. Published openly — anyone can look this value up after the fact.
- **Class C** (Observational) — `seismic`, `space-weather`, `atmosphere`, `iss`. Carries only tens of bits of genuine surprise. Always mixed with the OS CSPRNG.

## More

- [The full API contract](https://randomly.cluxnei.dev/api.md)
- [Everything in one file](https://randomly.cluxnei.dev/llms-full.txt)
- [The catalogue as JSON](https://randomly.cluxnei.dev/api/v1/generators)
- [This generator in the browser](https://randomly.cluxnei.dev/g/numbers/timestamp)