Pith Number

pith:LCP35KAC

pith:2021:LCP35KACNGNLPQ5ELXCO23FJOU

not attested not anchored not stored refs pending

A Prototype of a Compact Rubidium-Based Optical Frequency Reference for Operation on Nanosatellites

Aaron Strangfeld, Alexander Ling, Andreas Wicht, Benjamin Wiegand, Markus Krutzik, Max Schiemangk, Simon Kanthak

arxiv:2105.02021 v1 · 2021-05-05 · physics.atom-ph · physics.ins-det

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LCP35KACNGNLPQ5ELXCO23FJOU}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T02:43:22.729969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

589fbea802699ab7c3a45dc4ed6ca97534f9fc495807c30136fffce96ca0969a

Aliases

arxiv: 2105.02021 · arxiv_version: 2105.02021v1 · doi: 10.48550/arxiv.2105.02021 · pith_short_12: LCP35KACNGNL · pith_short_16: LCP35KACNGNLPQ5E · pith_short_8: LCP35KAC

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/LCP35KACNGNLPQ5ELXCO23FJOU \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 589fbea802699ab7c3a45dc4ed6ca97534f9fc495807c30136fffce96ca0969a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "184488a5c867eb09bdd4f53249139f59a8d66d246eb3020be0d7bb2fdf2d3ac1",
    "cross_cats_sorted": [
      "physics.ins-det"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2021-05-05T12:41:20Z",
    "title_canon_sha256": "de949b3d05431bc3728bd8a4824841e98446b938da8db3fbc7f2118d8183f2ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.02021",
    "kind": "arxiv",
    "version": 1
  }
}