Pith Number

pith:WBVUHKX4

pith:2003:WBVUHKX4OVLHFZULNISC7KBX2W

not attested not anchored not stored refs pending

The relationship between the X-ray and radio components in the Compact Steep Spectrum Quasar 3C 48

A.C.S. Readhead, D.M. Worrall, M.J. Hardcastle, T.J. Pearson

arxiv:astro-ph/0309737 v1 · 2003-09-26 · 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{WBVUHKX4OVLHFZULNISC7KBX2W}

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	2026-07-04T16:51:46.123422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b06b43aafc755672e68b6a242fa837d59bb2d7702740b0a6dc4b366847b24e98

Aliases

arxiv: astro-ph/0309737 · arxiv_version: astro-ph/0309737v1 · doi: 10.48550/arxiv.astro-ph/0309737 · pith_short_12: WBVUHKX4OVLH · pith_short_16: WBVUHKX4OVLHFZUL · pith_short_8: WBVUHKX4

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/WBVUHKX4OVLHFZULNISC7KBX2W \
  | 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: b06b43aafc755672e68b6a242fa837d59bb2d7702740b0a6dc4b366847b24e98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "561aa1432ce312eb05dfe96c568f9089b9246ee83363b8d6d609a8309b5cb4d4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-26T22:21:49Z",
    "title_canon_sha256": "af28a5fb872b91c618f73201bb0a95a9c837219f19513863d2ee6567d7d7d20b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309737",
    "kind": "arxiv",
    "version": 1
  }
}