Pith Number

pith:S6ZSDFTL

pith:2009:S6ZSDFTLCR5677X4YQEDDAC6KG

not attested not anchored not stored refs pending

Long term variability of the Broad Emission Line profiles in AGN

A.I. Shapovalova, A. Kovacevic, A.N. Burenkov, D.Ilic, L.C. Popovic, N.G. Bochkarev, S. Collin, V.H. Chavushyan, V. T. Doroshenko

arxiv:0908.2763 v2 · 2009-08-19 · astro-ph.GA · 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{S6ZSDFTLCR5677X4YQEDDAC6KG}

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	2026-05-18T02:12:25.110197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97b321966b147beffefcc40831805e519f7fe220aa9f4e9ed510ff0bd544549a

Aliases

arxiv: 0908.2763 · arxiv_version: 0908.2763v2 · doi: 10.48550/arxiv.0908.2763 · pith_short_12: S6ZSDFTLCR56 · pith_short_16: S6ZSDFTLCR5677X4 · pith_short_8: S6ZSDFTL

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/S6ZSDFTLCR5677X4YQEDDAC6KG \
  | 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: 97b321966b147beffefcc40831805e519f7fe220aa9f4e9ed510ff0bd544549a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38e1b3ceb3cdff3e760ae9a32fb2a7cda759127322d9a3950c9846e7bb5ec754",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-08-19T14:34:58Z",
    "title_canon_sha256": "65417319ded98441c9403c0bc5fc1628199dd65a45194037e300888ba1af8f1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2763",
    "kind": "arxiv",
    "version": 2
  }
}