Pith Number

pith:QTFVZWST

pith:2013:QTFVZWST3PWLVNT36EYHEIQV46

not attested not anchored not stored refs pending

Long-term variability of AGN at hard X-rays

((1) APC Paris, (2) APC/FACe Paris, (3) NASA/GSFC Greenbelt, 4), (4) JCA Baltimore, (5) MPE Munich, 6), (6) CRESST Greenbelt, (7) Zielona Gora University), C. R. Shrader (3, F. Mattana (2), G. Ponti (5), H. A. Krimm (3, J. Tueller (3), P. Lubinski (7), S. Soldi (1), V. Beckmann (2), W. H. Baumgartner (3

arxiv:1311.4164 v1 · 2013-11-17 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QTFVZWST3PWLVNT36EYHEIQV46}

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	2026-05-18T01:46:24.042710Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84cb5cda53dbecbab67bf130722215e797a0e02da497e425847b2006e57f1ff2

Aliases

arxiv: 1311.4164 · arxiv_version: 1311.4164v1 · doi: 10.48550/arxiv.1311.4164 · pith_short_12: QTFVZWST3PWL · pith_short_16: QTFVZWST3PWLVNT3 · pith_short_8: QTFVZWST

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/QTFVZWST3PWLVNT36EYHEIQV46 \
  | 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: 84cb5cda53dbecbab67bf130722215e797a0e02da497e425847b2006e57f1ff2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da2712d6b46ca38753b6bb46490e42d7c1804ab72b97d5a75880787a1b1116c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-11-17T14:37:27Z",
    "title_canon_sha256": "24a321bdee4afe3bd64b6d4fdda47e9a08427be6ff69d1276bcfaa95f6ce5477"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4164",
    "kind": "arxiv",
    "version": 1
  }
}