Pith Number

pith:HX4TFTCT

pith:1998:HX4TFTCTW4AOOLDMR6DP6D5YJG

not attested not anchored not stored refs pending

The quiescent state broadband X-ray spectrum and variability of Mkn421

3), A.Malizia (2, A.N.Parmar (1) ((1) Astrophysics Division, Bologna, E.Palazzi (4), G.Vacanti (1), I), I; (3) Southampton University, K.S.O'Flaherty (1), M.Guainazzi (1), NL; (2) BeppoSAX SDC, Noordwijk, Rome, SSD/ESA, UK; (4) ITESRE/CNR

arxiv:astro-ph/9810086 v1 · 1998-10-06 · 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{HX4TFTCTW4AOOLDMR6DP6D5YJG}

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	2026-07-04T14:16:05.171774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3df932cc53b700e72c6c8f86ff0fb849ba771035c1461fc8de8c0bcfa6b92fe1

Aliases

arxiv: astro-ph/9810086 · arxiv_version: astro-ph/9810086v1 · doi: 10.48550/arxiv.astro-ph/9810086 · pith_short_12: HX4TFTCTW4AO · pith_short_16: HX4TFTCTW4AOOLDM · pith_short_8: HX4TFTCT

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/HX4TFTCTW4AOOLDMR6DP6D5YJG \
  | 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: 3df932cc53b700e72c6c8f86ff0fb849ba771035c1461fc8de8c0bcfa6b92fe1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6762979c7f9e3de7615bae25a004ab9df870c53fe76c80b9bda7ef61a8a838d7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-10-06T15:43:04Z",
    "title_canon_sha256": "888dd832defb4e6fa6aea9bae3c0e5bf758a9dbe14be66ad94f25193d4fa941b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9810086",
    "kind": "arxiv",
    "version": 1
  }
}