Pith Number

pith:Q3PPMNHM

pith:2004:Q3PPMNHMDEHMW2FH2F6BZOFGYS

not attested not anchored not stored refs pending

Transmission- to reflection-dominated transition in Seyfert 2 galaxies: the XMM-Newton view

A.C.Fabian (2), Cambridge, E; (2) Istitute of Astronomy, F.Fiore (4) ((1) XMM-Newton SOC, G.Matt (3), I), I; (4) Osservatorio Astronomico di Roma, K.Iwasawa (2), M.Guainazzi (1), P.Rodriguez-Pascual (1), RSSD of ESA, UK; (3) Universita' "Roma Tre", Villafrance del Castillo, VILSPA

arxiv:astro-ph/0404031 v1 · 2004-04-01 · 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{Q3PPMNHMDEHMW2FH2F6BZOFGYS}

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	2026-05-18T00:37:32.503776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86def634ec190ecb68a7d17c1cb8a6c4a5165da3b618fba478deaf8425651ba0

Aliases

arxiv: astro-ph/0404031 · arxiv_version: astro-ph/0404031v1 · doi: 10.48550/arxiv.astro-ph/0404031 · pith_short_12: Q3PPMNHMDEHM · pith_short_16: Q3PPMNHMDEHMW2FH · pith_short_8: Q3PPMNHM

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/Q3PPMNHMDEHMW2FH2F6BZOFGYS \
  | 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: 86def634ec190ecb68a7d17c1cb8a6c4a5165da3b618fba478deaf8425651ba0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12c6afc6afd18bd355bfd9a87b755fe651e59d8f28e0d00cd15bbe636c70dafa",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-04-01T17:01:15Z",
    "title_canon_sha256": "7247ad06a9fa1e13a57e21e115ec0a1e2f6df2ddc2273922f2270f5ff54abfa0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0404031",
    "kind": "arxiv",
    "version": 1
  }
}