Pith Number

pith:3UQ4UUDW

pith:1995:3UQ4UUDWEL2KP627JAG55OBD6A

not attested not anchored not stored refs pending

Einstein Observatory evidence for the widespread baryon overdensity in clusters of galaxies,

A.C. Fabian, D.A. White

arxiv:astro-ph/9502092 v1 · 1995-02-22 · 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{3UQ4UUDWEL2KP627JAG55OBD6A}

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	2026-05-18T01:40:23.778053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd21ca507622f4a7fb5f480ddeb823f039cfa0166d62f9153e8da5ed37d6e4e5

Aliases

arxiv: astro-ph/9502092 · arxiv_version: astro-ph/9502092v1 · doi: 10.48550/arxiv.astro-ph/9502092 · pith_short_12: 3UQ4UUDWEL2K · pith_short_16: 3UQ4UUDWEL2KP627 · pith_short_8: 3UQ4UUDW

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/3UQ4UUDWEL2KP627JAG55OBD6A \
  | 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: dd21ca507622f4a7fb5f480ddeb823f039cfa0166d62f9153e8da5ed37d6e4e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c79406bc6ea4c7a10d4814896c6cddd1a78213b291b09243bf4bd4dfdf98939",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-02-22T18:22:55Z",
    "title_canon_sha256": "1d8f030f285e5a521e72d93ca09dd33a5e57c143ed96093aef150c4f4d2372f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9502092",
    "kind": "arxiv",
    "version": 1
  }
}