Pith Number

pith:S72F3JWW

pith:2017:S72F3JWWBJNIXI7SDUMZKKNLXA

not attested not anchored not stored refs pending

Neutral gas heating by X-rays in primitive galaxies: Infrared observations of IZw18 with Herschel

D. Cormier, D. Kunth, D. Pequignot, F. Galliano, F. L. Polles, M. Chevance, M. W. Pakull, M.-Y. Lee, S. Madden, S. R. Heap, V. Lebouteiller

arxiv:1702.07377 v2 · 2017-02-23 · astro-ph.GA · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S72F3JWWBJNIXI7SDUMZKKNLXA}

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	2026-05-18T00:42:52.571941Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97f45da6d60a5a8ba3f21d199529abb80ed2b315ffb92cc4b996c4a31c73de93

Aliases

arxiv: 1702.07377 · arxiv_version: 1702.07377v2 · doi: 10.48550/arxiv.1702.07377 · pith_short_12: S72F3JWWBJNI · pith_short_16: S72F3JWWBJNIXI7S · pith_short_8: S72F3JWW

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/S72F3JWWBJNIXI7SDUMZKKNLXA \
  | 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: 97f45da6d60a5a8ba3f21d199529abb80ed2b315ffb92cc4b996c4a31c73de93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b00da6368983a7efa4b58fc13ba73212c97be7a5239b212ebde767daa34cb60",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-02-23T20:10:43Z",
    "title_canon_sha256": "0cfced44943b804ccf7acfbf1cfe5b0fee40319b1a24d9fffb558d885304e38a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07377",
    "kind": "arxiv",
    "version": 2
  }
}