Pith Number

pith:HXZW4XFT

pith:2018:HXZW4XFTPPHNPPDJEEOMQ3KQXA

not attested not anchored not stored refs pending

Direct frequency comb saturation spectroscopy with an ultradense tooth spacing of 100 Hz

Adam J. Fleisher, David A. Long, Joseph T. Hodges

arxiv:1812.09342 v1 · 2018-12-21 · physics.atom-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HXZW4XFTPPHNPPDJEEOMQ3KQXA}

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	2026-05-17T23:57:30.341879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3df36e5cb37bced7bc69211cc86d50b82e0e4cbf7681c19e764da8882facef80

Aliases

arxiv: 1812.09342 · arxiv_version: 1812.09342v1 · doi: 10.48550/arxiv.1812.09342 · pith_short_12: HXZW4XFTPPHN · pith_short_16: HXZW4XFTPPHNPPDJ · pith_short_8: HXZW4XFT

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/HXZW4XFTPPHNPPDJEEOMQ3KQXA \
  | 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: 3df36e5cb37bced7bc69211cc86d50b82e0e4cbf7681c19e764da8882facef80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e6cbe88f35810b996fa938632fbb95f7816f147c35b682bd3f3e8046f6fd2d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2018-12-21T19:15:42Z",
    "title_canon_sha256": "7f6baa183817e43155bcbd33889127c0037c8d5c3d232bb450620166e78cfa62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.09342",
    "kind": "arxiv",
    "version": 1
  }
}