Pith Number

pith:YSCXFNEL

pith:2014:YSCXFNEL3BBRGTGEHACH5PKOJU

not attested not anchored not stored refs pending

Metallicity evolution of AGNs from UV emission-lines based on a new index

Angela C. Krabbe, Guillermo F. Hagele, Monica V. Cardaci, Oli L. Dors Jr.

arxiv:1406.4832 v1 · 2014-06-18 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YSCXFNEL3BBRGTGEHACH5PKOJU}

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

1 paper in Pith

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs

Receipt and verification

First computed	2026-05-18T01:42:53.402385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c48572b48bd843134cc438047ebd4e4d3f05077748cb9123f5762edc59ed064e

Aliases

arxiv: 1406.4832 · arxiv_version: 1406.4832v1 · doi: 10.48550/arxiv.1406.4832 · pith_short_12: YSCXFNEL3BBR · pith_short_16: YSCXFNEL3BBRGTGE · pith_short_8: YSCXFNEL

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/YSCXFNEL3BBRGTGEHACH5PKOJU \
  | 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: c48572b48bd843134cc438047ebd4e4d3f05077748cb9123f5762edc59ed064e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2acc7100557f4fdb580f34098e64b3b3881106ac8ffefc7109cc3ce1b910c5c6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-06-18T18:39:17Z",
    "title_canon_sha256": "d1c372fc79654e73e5c915a614c499bbda6b7a3ad7a1bf8cfe3276aa5f67cc14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.4832",
    "kind": "arxiv",
    "version": 1
  }
}