Pith Number

pith:IGNFV4VJ

pith:2009:IGNFV4VJ4OACJHKM7UVXADVH5J

not attested not anchored not stored refs pending

Implications of infalling Fe II - emitting clouds in active galactic nuclei: anisotropic properties

Chen Hu, Gary J. Ferland, Jack A. Baldwin, Jian-Min Wang, Peter A. M. van Hoof, R.J.R. Williams, Ryan L. Porter

arxiv:0911.1173 v2 · 2009-11-06 · 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{IGNFV4VJ4OACJHKM7UVXADVH5J}

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	2026-05-18T02:34:11.787676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

419a5af2a9e380249d4cfd2b700ea7ea7da5356f803a59ec98a9e38f98339e28

Aliases

arxiv: 0911.1173 · arxiv_version: 0911.1173v2 · doi: 10.48550/arxiv.0911.1173 · pith_short_12: IGNFV4VJ4OAC · pith_short_16: IGNFV4VJ4OACJHKM · pith_short_8: IGNFV4VJ

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/IGNFV4VJ4OACJHKM7UVXADVH5J \
  | 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: 419a5af2a9e380249d4cfd2b700ea7ea7da5356f803a59ec98a9e38f98339e28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "051436be7d95178dd73dde1b1991310612e72c1c225bef75f9197dd17b6b7257",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-06T06:27:11Z",
    "title_canon_sha256": "b991f1da7344ee8a36911d2579d9677e9f2f04413d99af4a5f7128ca0e3f0fae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1173",
    "kind": "arxiv",
    "version": 2
  }
}