Pith Number

pith:HJ2WRSDI

pith:2019:HJ2WRSDI4X4P644K7O3UG2KVWK

not attested not anchored not stored refs pending

Broadband photoacoustic spectroscopy of $^{14}\text{CH}_4$ with a high-power mid-infrared optical frequency comb

Francisco Senna Vieira, Guillaume Genoud, Juho Karhu, Lauri Halonen, Markku Vainio, Markus Mets\"al\"a, Steven Bell, Teemu Tomberg, Tuomas Hieta, Vesa H\"anninen

arxiv:1901.03154 v2 · 2019-01-10 · physics.optics · physics.app-ph · physics.chem-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{HJ2WRSDI4X4P644K7O3UG2KVWK}

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	2026-05-17T23:53:08.831580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a7568c868e5f8ff738afbb7436955b2b295c53bb06dab33dab5cfe5a7c12dde

Aliases

arxiv: 1901.03154 · arxiv_version: 1901.03154v2 · doi: 10.48550/arxiv.1901.03154 · pith_short_12: HJ2WRSDI4X4P · pith_short_16: HJ2WRSDI4X4P644K · pith_short_8: HJ2WRSDI

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/HJ2WRSDI4X4P644K7O3UG2KVWK \
  | 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: 3a7568c868e5f8ff738afbb7436955b2b295c53bb06dab33dab5cfe5a7c12dde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5a26e43d6cb30bf4ad8272b2c7347d93ca8f4044f81ea4d74f23cf1ef356ee1",
    "cross_cats_sorted": [
      "physics.app-ph",
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-01-10T13:40:38Z",
    "title_canon_sha256": "3c59234356123bbbd5eb4a328f1dd9627ca5aef7ec30553b5ff3dd048b0bc2ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03154",
    "kind": "arxiv",
    "version": 2
  }
}