Pith Number

pith:PUB7CDSK

pith:2019:PUB7CDSKZ5XWKNPRYOFZCKRDAN

not attested not anchored not stored refs pending

Correlations between the Variation of the Ionizing Continuum and Broad Absorption Lines in Individual Quasars

Wei-Jian Lu, Ying-Ru Lin

arxiv:1908.03844 v1 · 2019-08-11 · 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{PUB7CDSKZ5XWKNPRYOFZCKRDAN}

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	2026-07-05T00:06:53.292837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d03f10e4acf6f6535f1c38b912a230352c549cbf82bec3c58986749b864d620

Aliases

arxiv: 1908.03844 · arxiv_version: 1908.03844v1 · doi: 10.48550/arxiv.1908.03844 · pith_short_12: PUB7CDSKZ5XW · pith_short_16: PUB7CDSKZ5XWKNPR · pith_short_8: PUB7CDSK

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/PUB7CDSKZ5XWKNPRYOFZCKRDAN \
  | 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: 7d03f10e4acf6f6535f1c38b912a230352c549cbf82bec3c58986749b864d620

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca56ff3d6bcb61ce23489387f52d2dfb4fee7ac06763ca265d26ee56c19adbb2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-11T03:17:54Z",
    "title_canon_sha256": "662da94c29b9ecb93210579f5a7df4427b2f51f8988dca0fc67256a571675e4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03844",
    "kind": "arxiv",
    "version": 1
  }
}