Pith Number

pith:RULFZ55E

pith:1994:RULFZ55EPGAVELGAQ4TEBD7ZQ3

not attested not anchored not stored refs pending

Nearby Galaxies and the Ginga X-ray Background

A.C. Fabian, F.J. Carrera, G.C. Stewart & R.S. Warwick, J.A. Butcher, O. Lahav, X. Barcons

arxiv:astro-ph/9412001 v2 · 1994-12-01 · 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{RULFZ55EPGAVELGAQ4TEBD7ZQ3}

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	2026-05-18T01:40:24.086299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d165cf7a47981522cc08726408ff986e47c1c6f30a358506ba909093ebda125

Aliases

arxiv: astro-ph/9412001 · arxiv_version: astro-ph/9412001v2 · doi: 10.48550/arxiv.astro-ph/9412001 · pith_short_12: RULFZ55EPGAV · pith_short_16: RULFZ55EPGAVELGA · pith_short_8: RULFZ55E

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/RULFZ55EPGAVELGAQ4TEBD7ZQ3 \
  | 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: 8d165cf7a47981522cc08726408ff986e47c1c6f30a358506ba909093ebda125

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c52820c8533b0fcc7fcc4c9f05cd40c48c1ae0a21cd150987ac7d0cf28383846",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1994-12-01T12:58:11Z",
    "title_canon_sha256": "d2ecac3572a9bc01e0688b7ef06c2645361dcc42a474bf973a584dd946a91d01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9412001",
    "kind": "arxiv",
    "version": 2
  }
}