Pith Number

pith:LGFUZTVO

pith:2018:LGFUZTVOT4HUQM5QMMQBRWYARL

not attested not anchored not stored refs pending

Ultraviolet laser spectroscopy of aluminum atoms in hollow-cathode lamp

Hongli Liu, Ke Deng, Wenhao Yuan, Zehuang Lu, Zetian Xu

arxiv:1802.02749 v1 · 2018-02-08 · 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{LGFUZTVOT4HUQM5QMMQBRWYARL}

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	2026-05-18T00:00:57.482757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

598b4cceae9f0f4833b0632018db008ae8ac6a9f55b7c56309a4c6c34f894634

Aliases

arxiv: 1802.02749 · arxiv_version: 1802.02749v1 · doi: 10.48550/arxiv.1802.02749 · pith_short_12: LGFUZTVOT4HU · pith_short_16: LGFUZTVOT4HUQM5Q · pith_short_8: LGFUZTVO

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/LGFUZTVOT4HUQM5QMMQBRWYARL \
  | 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: 598b4cceae9f0f4833b0632018db008ae8ac6a9f55b7c56309a4c6c34f894634

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4ae3fc5fabbd33de201f0071789c6e2c56f8f44a171842ea246548856e28d5a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2018-02-08T08:34:57Z",
    "title_canon_sha256": "743a63dd5b0866a026ab7e5eb7f4cff824f1c367bf29d151cc939201150fb5de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02749",
    "kind": "arxiv",
    "version": 1
  }
}