Pith Number

pith:GFQYAOAN

pith:2003:GFQYAOANFQ4ZQUL75Z72AZI5HR

not attested not anchored not stored refs pending

Investigation of the obscuring circumnuclear torus in the active galaxy Mrk231

2), (2) ASTRON, (3) JIVE; The Netherlands), Hans-Rainer Kl"ockner (1, Michael A. Garrett (3) ((1) Kapteyn Astronomical Institute, University of Groningen, Willem A. Baan (2)

arxiv:astro-ph/0302395 v1 · 2003-02-19 · 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{GFQYAOANFQ4ZQUL75Z72AZI5HR}

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	2026-07-04T14:12:36.823244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

316180380d2c3998517fee7fa0651d3c7e419b0fabbab838401d9e3309decb4c

Aliases

arxiv: astro-ph/0302395 · arxiv_version: astro-ph/0302395v1 · doi: 10.48550/arxiv.astro-ph/0302395 · pith_short_12: GFQYAOANFQ4Z · pith_short_16: GFQYAOANFQ4ZQUL7 · pith_short_8: GFQYAOAN

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/GFQYAOANFQ4ZQUL75Z72AZI5HR \
  | 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: 316180380d2c3998517fee7fa0651d3c7e419b0fabbab838401d9e3309decb4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3d29cd1c7f8893a64b620773b653712e5f30fcafd1640961fc2fb5325849883",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-02-19T19:15:46Z",
    "title_canon_sha256": "8b925c91d87d09678c6d9d4094d19f11f3d68557b27f48c441cdbd8831572850"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0302395",
    "kind": "arxiv",
    "version": 1
  }
}