Pith Number

pith:VW674HQ6

pith:1998:VW674HQ6F7IQ3Y2ECN6Y2UQPQA

not attested not anchored not stored refs pending

X-ray Properties of B2 1028+313: A Quasar at the Center of the Abell Cluster A1030

A. M. Koekemoer, C. L. Sarazin, C. P. O'Dea, F. N. Owen, M. W. Wise, S. A. Baum

arxiv:astro-ph/9806372 v1 · 1998-06-29 · 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{VW674HQ6F7IQ3Y2ECN6Y2UQPQA}

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	2026-07-04T16:06:48.790735Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adbdfe1e1e2fd10de344137d8d520f80376a40e84e0e8a6a05a7cd1beaf83a7b

Aliases

arxiv: astro-ph/9806372 · arxiv_version: astro-ph/9806372v1 · doi: 10.48550/arxiv.astro-ph/9806372 · pith_short_12: VW674HQ6F7IQ · pith_short_16: VW674HQ6F7IQ3Y2E · pith_short_8: VW674HQ6

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/VW674HQ6F7IQ3Y2ECN6Y2UQPQA \
  | 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: adbdfe1e1e2fd10de344137d8d520f80376a40e84e0e8a6a05a7cd1beaf83a7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56a2f7559010d2b77cf1a3bb5f1d72469ff7b8b3771361dca16ce4f09faad18f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-06-29T16:02:07Z",
    "title_canon_sha256": "106cbcda87e688b3b0b75f96fad47e3a2d0c8931f9adde9bee30298d58d606fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9806372",
    "kind": "arxiv",
    "version": 1
  }
}