Pith Number

pith:FK3WQUTP

pith:1997:FK3WQUTPDAKWILO3CBOPIKCQ4N

not attested not anchored not stored refs pending

The shape of galaxy disks: how the scale height increases with galactocentric distance

Groningen, R. de Grijs, R.F. Peletier (Kapteyn Astronomical Institute, the Netherlands)

arxiv:astro-ph/9702215 v1 · 1997-02-25 · 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{FK3WQUTPDAKWILO3CBOPIKCQ4N}

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.

Cited by

1 paper in Pith

Projection-Enhanced Disk Breaks: Evidence from Deep Photometric Decomposition

Receipt and verification

First computed	2026-07-04T14:15:04.140750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ab768526f1815642ddb105cf42850e34392bff94aada60a24ea855b96b6a29b

Aliases

arxiv: astro-ph/9702215 · arxiv_version: astro-ph/9702215v1 · doi: 10.48550/arxiv.astro-ph/9702215 · pith_short_12: FK3WQUTPDAKW · pith_short_16: FK3WQUTPDAKWILO3 · pith_short_8: FK3WQUTP

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/FK3WQUTPDAKWILO3CBOPIKCQ4N \
  | 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: 2ab768526f1815642ddb105cf42850e34392bff94aada60a24ea855b96b6a29b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b56091c2f7a3dbb80abda7e0d6b5b0ee548cb1ddee1388671c4fcfefdaffd17c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-02-25T13:57:06Z",
    "title_canon_sha256": "da7301a3b8d3fed5b57721d47a94a062a990c094b2990241db0ebec014af16fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9702215",
    "kind": "arxiv",
    "version": 1
  }
}