Pith Number

pith:OWRUP33G

pith:2013:OWRUP33GBSK2B6BRVP4QVZLL2B

not attested not anchored not stored refs pending

Ultraviolet variability of quasars: dependence on the accretion rate

H. Meusinger, V. Weiss

arxiv:1311.2759 v1 · 2013-11-12 · 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{OWRUP33GBSK2B6BRVP4QVZLL2B}

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	2026-05-18T01:46:31.993326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75a347ef660c95a0f831abf90ae56bd056d9daa732ba20e331f4d9bfb0130c85

Aliases

arxiv: 1311.2759 · arxiv_version: 1311.2759v1 · doi: 10.48550/arxiv.1311.2759 · pith_short_12: OWRUP33GBSK2 · pith_short_16: OWRUP33GBSK2B6BR · pith_short_8: OWRUP33G

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/OWRUP33GBSK2B6BRVP4QVZLL2B \
  | 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: 75a347ef660c95a0f831abf90ae56bd056d9daa732ba20e331f4d9bfb0130c85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9111e8097d07ed86225d5f0b3609bfeab0eab0ddda1be165e4a5b3b96dca8fae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-11-12T12:44:37Z",
    "title_canon_sha256": "dd7df9db487bf185479b80ed452de877db8a2e173c081931def973f947f0bd38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.2759",
    "kind": "arxiv",
    "version": 1
  }
}