Pith Number

pith:EZDKF4WC

pith:2004:EZDKF4WCKNRHFINXJX4TEAJDH7

not attested not anchored not stored refs pending

The Origin of Fe II Emission in AGN

A. Lacluyze, F. Hamann, G. J. Ferland, J. A. Baldwin, K. T. Korista

arxiv:astro-ph/0407404 v1 · 2004-07-19 · 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{EZDKF4WCKNRHFINXJX4TEAJDH7}

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.

Cited by

4 papers in Pith

Little Red Dots at z~2 in EIGER reveal a gentle decline with respect to their peak number density at z~5

Radiation-pressure instability is an artifact of constant-$\alpha$ closure. Implications for AGN disk tensions

Little Red and Blue Dots: AGN-excited narrow lines, Lyman-$\alpha$ emission, and resemblance to standard quasars

HALO II: Constraining Hubble constant $H_{0}$ through continuum delay fitting of Fairall 9

Receipt and verification

First computed	2026-07-04T16:44:20.891751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2646a2f2c2536272a1b74df93201233fe340c78d1663ea61e66008a1973ba8b1

Aliases

arxiv: astro-ph/0407404 · arxiv_version: astro-ph/0407404v1 · doi: 10.48550/arxiv.astro-ph/0407404 · pith_short_12: EZDKF4WCKNRH · pith_short_16: EZDKF4WCKNRHFINX · pith_short_8: EZDKF4WC

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/EZDKF4WCKNRHFINXJX4TEAJDH7 \
  | 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: 2646a2f2c2536272a1b74df93201233fe340c78d1663ea61e66008a1973ba8b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81b9eab3962968d126ddfd072c038db29a4cbfad5130d18ad9c21ba5fee7a36c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-07-19T17:56:05Z",
    "title_canon_sha256": "f5ce417a0284c4b319d28f0ec0754b87327f7012958422c4c427e6db4e9dd525"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0407404",
    "kind": "arxiv",
    "version": 1
  }
}