Pith Number

pith:ZGJIKGCS

pith:1997:ZGJIKGCSNV3S2TXG2NQEFGHONE

not attested not anchored not stored refs pending

The dark and baryonic matter content of low surface brightness disk galaxies

Groningen, Netherlands), Stacy S. McGaugh (Dept. of Terrestrial Magnetism, Washington DC), W.J.G. de Blok (Kapteyn Institute

arxiv:astro-ph/9704274 v1 · 1997-04-28 · 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{ZGJIKGCSNV3S2TXG2NQEFGHONE}

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	2026-05-18T01:40:17.607958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9928518526d772d4ee6d3604298ee690b42b33b0ad7ef035e6465d2e6dc3a22

Aliases

arxiv: astro-ph/9704274 · arxiv_version: astro-ph/9704274v1 · doi: 10.48550/arxiv.astro-ph/9704274 · pith_short_12: ZGJIKGCSNV3S · pith_short_16: ZGJIKGCSNV3S2TXG · pith_short_8: ZGJIKGCS

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/ZGJIKGCSNV3S2TXG2NQEFGHONE \
  | 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: c9928518526d772d4ee6d3604298ee690b42b33b0ad7ef035e6465d2e6dc3a22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "adb4c08026a621fe91ad5315ef80fe240cd64a150c1df78a838490fa882ac730",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-04-28T20:13:07Z",
    "title_canon_sha256": "47792d61fee357af2cc90189d6cb834af302e65c0ec810df8a69706bfb52cb0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9704274",
    "kind": "arxiv",
    "version": 1
  }
}