Pith Number

pith:HKA65W27

pith:2009:HKA65W27D7CDFBCFP5VESZSRDK

not attested not anchored not stored refs pending

Frequency-modulation saturation spectroscopy of molecular iodine hyperfine structure near 640 nm with a diode laser source

A. M. Negriyko, I. V. Matsnev, L.P. Yatsenko, R.A. Malitskiy, V. I. Romanenko, V. M. Khodakovskiy

arxiv:0912.3252 v1 · 2009-12-16 · physics.atom-ph · quant-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{HKA65W27D7CDFBCFP5VESZSRDK}

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	2026-05-18T02:10:16.277606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a81eedb5f1fc43284457f6a4966511a8bccbaa4ea389c53ca7668e153232bfc

Aliases

arxiv: 0912.3252 · arxiv_version: 0912.3252v1 · doi: 10.48550/arxiv.0912.3252 · pith_short_12: HKA65W27D7CD · pith_short_16: HKA65W27D7CDFBCF · pith_short_8: HKA65W27

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/HKA65W27D7CDFBCFP5VESZSRDK \
  | 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: 3a81eedb5f1fc43284457f6a4966511a8bccbaa4ea389c53ca7668e153232bfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a37fa7302d5153d82a5627f33b0f4daf27a2c4828ebc0f46955ac6e886040e9",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2009-12-16T21:14:51Z",
    "title_canon_sha256": "54a13defeed942a5a87f8123b5589445994307c46a9740d38f7003b45507c1a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3252",
    "kind": "arxiv",
    "version": 1
  }
}