Pith Number

pith:AXNAG5UF

pith:2003:AXNAG5UF6F4OSEXHMWKFXLDGBM

not attested not anchored not stored refs pending

ASCA observation of Unusually X-ray Hard Radio Quiet QSO Kaz 102

Hisamitsu Awaki, Kiyoshi Hayashida, Takamitsu Miyaji, Yasushi Ogasaka, Yoshihiro Ueda, Yoshitaka Ishisaki

arxiv:astro-ph/0302430 v1 · 2003-02-20 · 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{AXNAG5UF6F4OSEXHMWKFXLDGBM}

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	2026-05-18T01:40:39.352536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05da037685f178e912e765945bac660b0770356a7246f950f6b2679c58426432

Aliases

arxiv: astro-ph/0302430 · arxiv_version: astro-ph/0302430v1 · doi: 10.48550/arxiv.astro-ph/0302430 · pith_short_12: AXNAG5UF6F4O · pith_short_16: AXNAG5UF6F4OSEXH · pith_short_8: AXNAG5UF

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/AXNAG5UF6F4OSEXHMWKFXLDGBM \
  | 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: 05da037685f178e912e765945bac660b0770356a7246f950f6b2679c58426432

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b58d5bf596f9bac2166ce5c4607e4efc6b8fda7f8035abde13ae927c54ec436e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-02-20T20:49:40Z",
    "title_canon_sha256": "f630c274adbd6392827c5e860ed1729628b2e25c9d0ba2d5f47078fc28f0fe51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0302430",
    "kind": "arxiv",
    "version": 1
  }
}