Pith Number

pith:K2JXDWFA

pith:1999:K2JXDWFAILJWRI4A4DYFK6WH7L

not attested not anchored not stored refs pending

Surface photometry of bulge dominated low surface brightness galaxies

(2) ATNF, Australia), J.M. van der Hulst (1) ((1) Kapteyn Astronomical Institute, M. Beijersbergen (1), Netherlands, W.J.G. de Blok (2)

arxiv:astro-ph/9909483 v1 · 1999-09-29 · 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{K2JXDWFAILJWRI4A4DYFK6WH7L}

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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

1 paper in Pith

The Merger-Driven Formation of Classical Low Surface Brightness Galaxies in Romulus25

Receipt and verification

First computed	2026-07-04T14:17:09.938050Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

569371d8a042d368a380e0f0557ac7fae9d9771a6cee29e6e9f33b86855c29ee

Aliases

arxiv: astro-ph/9909483 · arxiv_version: astro-ph/9909483v1 · doi: 10.48550/arxiv.astro-ph/9909483 · pith_short_12: K2JXDWFAILJW · pith_short_16: K2JXDWFAILJWRI4A · pith_short_8: K2JXDWFA

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/K2JXDWFAILJWRI4A4DYFK6WH7L \
  | 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: 569371d8a042d368a380e0f0557ac7fae9d9771a6cee29e6e9f33b86855c29ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae0f73159cc93f31ee25b5bfbe38d9cc9f9a303aa14c1d4b09f3379de07b2be7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-09-29T09:05:50Z",
    "title_canon_sha256": "8ec64f4a473144e8c370f3f7fe6f6ac5ebb63f13113e972aa560c304e7ab06c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9909483",
    "kind": "arxiv",
    "version": 1
  }
}