Pith Number

pith:WRFMC5EK

pith:1998:WRFMC5EKQ2RAVOXOF4GNZ22BVB

not attested not anchored not stored refs pending

Evolution of Cluster X-Ray Luminosities and Radii: Results from the 160 Square Degree ROSAT Survey

A.Hornstrup, A.Vikhlinin, B.R.McNamara, C.Jones, H.Quintana, W.Forman

arxiv:astro-ph/9803101 v1 · 1998-03-10 · astro-ph

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WRFMC5EKQ2RAVOXOF4GNZ22BVB}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:40:14.316361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b44ac1748a86a20abaee2f0cdceb41a86390464ee4548fdf29c58baaab1fda94

Aliases

arxiv: astro-ph/9803101 · arxiv_version: astro-ph/9803101v1 · doi: 10.48550/arxiv.astro-ph/9803101 · pith_short_12: WRFMC5EKQ2RA · pith_short_16: WRFMC5EKQ2RAVOXO · pith_short_8: WRFMC5EK

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/WRFMC5EKQ2RAVOXOF4GNZ22BVB \
  | 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: b44ac1748a86a20abaee2f0cdceb41a86390464ee4548fdf29c58baaab1fda94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "764d72d28ed7d62ce76df025e0e58317aa80bf2a0929a6b8c2c3c280078dca24",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-03-10T03:07:20Z",
    "title_canon_sha256": "9a0bdfc6684dbc4fbd3b5afa082e26bc5fc2b04ee301ad6fb77e998339096235"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9803101",
    "kind": "arxiv",
    "version": 1
  }
}