Pith Number

pith:PQUVGJW4

pith:1997:PQUVGJW4DC4CNMSQJGDMBADINW

not attested not anchored not stored refs pending

The Temperature of Extended Gas in Active Galaxies -- Evidence for Matter-Bounded Clouds

A. S. Wilson (STScI), L. Binette (ESO), T. Storchi-Bergmann (UFRGS)

arxiv:astro-ph/9704022 v1 · 1997-04-02 · 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{PQUVGJW4DC4CNMSQJGDMBADINW}

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	2026-05-18T01:07:38.532599Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c295326dc18b826b2504986c080686daf3420ff70968f17c72eb5e813f5976d

Aliases

arxiv: astro-ph/9704022 · arxiv_version: astro-ph/9704022v1 · doi: 10.48550/arxiv.astro-ph/9704022 · pith_short_12: PQUVGJW4DC4C · pith_short_16: PQUVGJW4DC4CNMSQ · pith_short_8: PQUVGJW4

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/PQUVGJW4DC4CNMSQJGDMBADINW \
  | 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: 7c295326dc18b826b2504986c080686daf3420ff70968f17c72eb5e813f5976d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b432c49178306757083f4317e6c1777e80268bb4cbd1b9d17f78c1d1fcfff90",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-04-02T16:55:34Z",
    "title_canon_sha256": "e0765697cee045c15588a5e9fd4885fc518d1365c8a41b687789ae2f01618b15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9704022",
    "kind": "arxiv",
    "version": 1
  }
}