Pith Number

pith:PLARFP6Y

pith:2003:PLARFP6YAC7URSB3H3QKQHMQBX

not attested not anchored not stored refs pending

Multiwavelength studies of the Seyfert 1 galaxy NGC7469. II - X-ray and UV observations with XMM-Newton

(2) Technion, (3) SRON, (4) STSCI, (5) Columbia, (6) Caltech), A. J. Blustin (1), E. Behar (2), G. A. Kriss (4), G. Branduardi-Raymont (1), J. S. Kaastra (3), K. C. Steenbrugge (3) ((1) MSSL, M. J. Page (1), M. Sako (6), S. M. Kahn (5)

arxiv:astro-ph/0302551 v1 · 2003-02-26 · 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{PLARFP6YAC7URSB3H3QKQHMQBX}

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	2026-05-18T04:21:41.723921Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ac112bfd800bf48c83b3ee0a81d900dfce9359adf103f2f51520bcea81ffd19

Aliases

arxiv: astro-ph/0302551 · arxiv_version: astro-ph/0302551v1 · doi: 10.48550/arxiv.astro-ph/0302551 · pith_short_12: PLARFP6YAC7U · pith_short_16: PLARFP6YAC7URSB3 · pith_short_8: PLARFP6Y

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/PLARFP6YAC7URSB3H3QKQHMQBX \
  | 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: 7ac112bfd800bf48c83b3ee0a81d900dfce9359adf103f2f51520bcea81ffd19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9f0cc93cd50df4167a6a5ecf9d3b4c3b06f8587d9f66f7b39553458bddaa9e3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-02-26T17:53:23Z",
    "title_canon_sha256": "76ec37ba3782b90b4b20d41bdb125a6b75629e5acd45bc38abe2cd0e126496a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0302551",
    "kind": "arxiv",
    "version": 1
  }
}