Pith Number

pith:32HPS3XV

pith:2011:32HPS3XVT3SG2RLVTMTSD3WM2Z

not attested not anchored not stored refs pending

Generation of Ultrastable Microwaves via Optical Frequency Division

A. Ludlow, C. W. Oates, F. Quinlan, J. C. Bergquist, J. Taylor, M. S. Kirchner, N. Lemke, S. A. Diddams, T. M. Fortier, T. Rosenband, Y. Jiang

arxiv:1101.3616 v3 · 2011-01-19 · physics.optics · 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{32HPS3XVT3SG2RLVTMTSD3WM2Z}

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	2026-05-18T03:52:12.533198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de8ef96ef59ee46d45759b2721eeccd66f581d0a5ee111ee677ebe5f0989ad3a

Aliases

arxiv: 1101.3616 · arxiv_version: 1101.3616v3 · doi: 10.48550/arxiv.1101.3616 · pith_short_12: 32HPS3XVT3SG · pith_short_16: 32HPS3XVT3SG2RLV · pith_short_8: 32HPS3XV

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/32HPS3XVT3SG2RLVTMTSD3WM2Z \
  | 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: de8ef96ef59ee46d45759b2721eeccd66f581d0a5ee111ee677ebe5f0989ad3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6745308ad1d6132b0319315daaaca607765cfd3182e9a09b6a30c548a510d2d1",
    "cross_cats_sorted": [
      "physics.ins-det"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2011-01-19T05:13:37Z",
    "title_canon_sha256": "6285c712df20f781fbb2870153a3233f309f151a7f4d4fd68c8fc41e5ea78a70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.3616",
    "kind": "arxiv",
    "version": 3
  }
}