Pith Number

pith:4NGFNODJ

pith:2007:4NGFNODJGE2SH6XR3ZUN3VEE52

not attested not anchored not stored refs pending

The Outer Disks of Early-Type Galaxies. I. Surface-Brightness Profiles of Barred Galaxies

(2) Kapteyn Astronomical Institute, (3) Instituto de Astrofisica de Canarias, Garching, Germany, Groningen, John E. Beckman (3) ((1) Max-Planck-Institut fuer extraterrestrische Physik, La Laguna, Michael Pohlen (2), Netherlands, Peter Erwin (1), Spain)

arxiv:0709.3505 v1 · 2007-09-21 · 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{4NGFNODJGE2SH6XR3ZUN3VEE52}

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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.

Cited by

2 papers in Pith

Optically Selected Superthin Galaxies Remain Thin in the Near-infrared

Projection-Enhanced Disk Breaks: Evidence from Deep Photometric Decomposition

Receipt and verification

First computed	2026-07-04T15:24:42.532614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e34c56b869313523faf1de68ddd484eebe9c54eecca875694ca8d05f0c5fa992

Aliases

arxiv: 0709.3505 · arxiv_version: 0709.3505v1 · doi: 10.48550/arxiv.0709.3505 · pith_short_12: 4NGFNODJGE2S · pith_short_16: 4NGFNODJGE2SH6XR · pith_short_8: 4NGFNODJ

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/4NGFNODJGE2SH6XR3ZUN3VEE52 \
  | 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: e34c56b869313523faf1de68ddd484eebe9c54eecca875694ca8d05f0c5fa992

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a22ea19f3a43de8c0bb7c42f286344c1c7f1ee7deb54966e2f1b76935d153654",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-09-21T19:00:34Z",
    "title_canon_sha256": "e664840bbadd234823abdbc3cfca518c4d6d70d7a8b4bb4f852cc812e8a7c2bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.3505",
    "kind": "arxiv",
    "version": 1
  }
}