Pith Number

pith:XBCWIN3I

pith:2009:XBCWIN3IFPHNBEGRVCCGQ3TKFU

not attested not anchored not stored refs pending

Enhanced Star Formation in Narrow Line Seyfert 1 AGN revealed by Spitzer

B. Trakhtenbrot, D. Lutz, E. Sani, E. Sturm, G. Risaliti, H. Netzer, L. C. Gallo, T. Boller

arxiv:0908.0280 v2 · 2009-08-03 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XBCWIN3IFPHNBEGRVCCGQ3TKFU}

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	2026-05-18T02:12:45.123934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8456437682bced090d1a884686e6a2d39d69972d6efc4daedc66cdcb9ec6c4b

Aliases

arxiv: 0908.0280 · arxiv_version: 0908.0280v2 · doi: 10.48550/arxiv.0908.0280 · pith_short_12: XBCWIN3IFPHN · pith_short_16: XBCWIN3IFPHNBEGR · pith_short_8: XBCWIN3I

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/XBCWIN3IFPHNBEGRVCCGQ3TKFU \
  | 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: b8456437682bced090d1a884686e6a2d39d69972d6efc4daedc66cdcb9ec6c4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dca75aceae002028fd131f4d76ac9bd455ae88b27b9eae4d6cf1567b77dfbc84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-08-03T15:29:23Z",
    "title_canon_sha256": "8ff913a99bdb7a236150370a12bdd3e87dbc87716aa6beac40374316623f4533"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0280",
    "kind": "arxiv",
    "version": 2
  }
}