Pith Number

pith:GYAKFEE6

pith:2007:GYAKFEE6RYYB4UVTYZQ3OC2PDM

not attested not anchored not stored refs pending

Dust and Atomic Gas in Dwarf Irregular Galaxies of the M81 Group: The SINGS and THINGS view

A. Li, B. Draine, C. Engelbracht, D. Calzetti, D. Dale, D. Hollenbach, E. Brinks, E. Murphy, F. Bigiel, F. Walter, G. Bendo, G. Helou, G. Rieke, H. Roussel, J. Cannon, J.D. Smith, J. Lee, J. Moustakas, K. Gordon, L. Armus, M. Meyer, M. Regan, M. Thornley, R. Kennicutt, W.J.G. de Blok

arxiv:astro-ph/0702378 v1 · 2007-02-14 · astro-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{GYAKFEE6RYYB4UVTYZQ3OC2PDM}

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	2026-05-18T04:29:06.551857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3600a2909e8e301e52b3c661b70b4f1b20ef2d8b9d6f4e487ab59c7720fefb2d

Aliases

arxiv: astro-ph/0702378 · arxiv_version: astro-ph/0702378v1 · doi: 10.48550/arxiv.astro-ph/0702378 · pith_short_12: GYAKFEE6RYYB · pith_short_16: GYAKFEE6RYYB4UVT · pith_short_8: GYAKFEE6

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/GYAKFEE6RYYB4UVTYZQ3OC2PDM \
  | 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: 3600a2909e8e301e52b3c661b70b4f1b20ef2d8b9d6f4e487ab59c7720fefb2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f619c1288363c3ba16880f930601e12be31e2836f33ef642ad668bf336e36de3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-02-14T14:28:12Z",
    "title_canon_sha256": "2248ddf4906bab5aad4d8fa9501d3953a57814aef62d924950c3970b7670d8e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0702378",
    "kind": "arxiv",
    "version": 1
  }
}