Pith Number

pith:ZO64MQBC

pith:2015:ZO64MQBCYB3A7XFCI3HKAMEFXO

not attested not anchored not stored refs pending

Doppler-free intermodulated fluorescence spectroscopy of $^4He$ $2^3P-3^{1,3}D$ transitions at 588 nm with a one-watt compact laser system

Jinmeng Hu, Jow-Tsong Shy, Li-Bang Wang, Pei-Ling Luo, Yan Feng

arxiv:1504.04968 v1 · 2015-04-20 · 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{ZO64MQBCYB3A7XFCI3HKAMEFXO}

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	2026-05-18T01:55:32.038409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbbdc64022c0760fdca246cea03085bb8baa093de994498558cb27d6c8c94230

Aliases

arxiv: 1504.04968 · arxiv_version: 1504.04968v1 · doi: 10.48550/arxiv.1504.04968 · pith_short_12: ZO64MQBCYB3A · pith_short_16: ZO64MQBCYB3A7XFC · pith_short_8: ZO64MQBC

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/ZO64MQBCYB3A7XFCI3HKAMEFXO \
  | 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: cbbdc64022c0760fdca246cea03085bb8baa093de994498558cb27d6c8c94230

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0655cddb2bbe3d6754f674ca04a964b217832e3e3b79cbf9fdf9966e853ec8c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2015-04-20T08:38:19Z",
    "title_canon_sha256": "42bf319c1b75dd4471b1cabda6b7c22d0eb18adeccd3a086a343237ba68928a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04968",
    "kind": "arxiv",
    "version": 1
  }
}