Pith Number

pith:XS7BMTGJ

pith:2010:XS7BMTGJPLUU7QOQFXW4KPTBTO

not attested not anchored not stored refs pending

Fe II Emission in AGN: The Role of Total and Gas-Phase Iron Abundance

Gregory A. Shields, Randi R. Ludwig, Sarah Salviander

arxiv:1006.2043 v2 · 2010-06-10 · 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{XS7BMTGJPLUU7QOQFXW4KPTBTO}

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	2026-05-18T02:06:55.110310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcbe164cc97ae94fc1d02dedc53e619b9b9f00f5e97042e595303b85df5b29df

Aliases

arxiv: 1006.2043 · arxiv_version: 1006.2043v2 · doi: 10.48550/arxiv.1006.2043 · pith_short_12: XS7BMTGJPLUU · pith_short_16: XS7BMTGJPLUU7QOQ · pith_short_8: XS7BMTGJ

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/XS7BMTGJPLUU7QOQFXW4KPTBTO \
  | 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: bcbe164cc97ae94fc1d02dedc53e619b9b9f00f5e97042e595303b85df5b29df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96847bfd80a1174a2ca77c939f5d9718d0f99c85a425972b2ded2f69efd75364",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-06-10T14:29:23Z",
    "title_canon_sha256": "8f0af671f0d9f7a6e1f527fda9f6d5832d9e48d102fe2965d9f45739886b0f43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.2043",
    "kind": "arxiv",
    "version": 2
  }
}