Pith Number

pith:QUCGGL3U

pith:1998:QUCGGL3UZLDPKTXZ5ZY3HK2VUZ

not attested not anchored not stored refs pending

BeppoSAX Observations of 2 Jy Lobe-dominated Broad-Line Sources: the Discovery of a Hard X-ray Component

A. Cimatti, C.N. Tadhunter, F. Vagnetti, J. Siebert, P. Padovani, R. Morganti

arxiv:astro-ph/9801048 v1 · 1998-01-07 · 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{QUCGGL3UZLDPKTXZ5ZY3HK2VUZ}

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	2026-07-04T16:06:04.124308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8504632f74cac6f54ef9ee71b3ab55a64efa4a6102e6e0be2b749eff78565b9d

Aliases

arxiv: astro-ph/9801048 · arxiv_version: astro-ph/9801048v1 · doi: 10.48550/arxiv.astro-ph/9801048 · pith_short_12: QUCGGL3UZLDP · pith_short_16: QUCGGL3UZLDPKTXZ · pith_short_8: QUCGGL3U

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/QUCGGL3UZLDPKTXZ5ZY3HK2VUZ \
  | 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: 8504632f74cac6f54ef9ee71b3ab55a64efa4a6102e6e0be2b749eff78565b9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e193897f06a7ed1e804872199c771409c75161b2a34c5a005ffcffdd6453bddf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-01-07T12:13:39Z",
    "title_canon_sha256": "d394e9dda75a9bc0996b1ed85c2e3e97d98b9044b84bd046250fc86f5d52c9be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9801048",
    "kind": "arxiv",
    "version": 1
  }
}