Pith Number

pith:JUGW6XLD

pith:2013:JUGW6XLDKGZOS5SLHWPRYTV36N

not attested not anchored not stored refs pending

Broad Absorption Line Variability on Multi-Year Timescales in a Large Quasar Sample

Adam D. Myers, B. F. Lundgren, Don York, D. P. Schneider, F. Hamann, I. Paris, N. Filiz Ak, Nicholas P. Ross, P. B. Hall, P. Petitjean, S. F. Anderson, W. N. Brandt, Yue Shen

arxiv:1309.5364 v1 · 2013-09-20 · 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{JUGW6XLDKGZOS5SLHWPRYTV36N}

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	2026-05-18T01:47:34.870278Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d0d6f5d6351b2e9764b3d9f1c4ebbf342d26746ae3b7b322f6a4c6a06af426e

Aliases

arxiv: 1309.5364 · arxiv_version: 1309.5364v1 · doi: 10.48550/arxiv.1309.5364 · pith_short_12: JUGW6XLDKGZO · pith_short_16: JUGW6XLDKGZOS5SL · pith_short_8: JUGW6XLD

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/JUGW6XLDKGZOS5SLHWPRYTV36N \
  | 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: 4d0d6f5d6351b2e9764b3d9f1c4ebbf342d26746ae3b7b322f6a4c6a06af426e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a49985242e04b6c655a0302d1aa48c378035062c562fcc5ebc35eea6af3d9144",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-09-20T20:00:10Z",
    "title_canon_sha256": "8074ddecb43f2ca5b930b46dce2b0ee9fc13dca36270de52755989a8347c436c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.5364",
    "kind": "arxiv",
    "version": 1
  }
}