Pith Number

pith:5QYOSMOK

pith:2007:5QYOSMOKKLDMDOSFPBEQ2FHEI3

not attested not anchored not stored refs pending

Hard X-ray Variability of AGN

2, 2), (2) Observatoire Astronomique de l'Universite de Geneve, 3), (3) CSST/UMBC, (4) ASD NASA/GSFC), G. Wendt (1) ((1) ISDC, J. Tueller (4), N. Gehrels (4), S. D. Barthelmy (4), S. Soldi (1, T.J.-L. Courvoisier (1, V. Beckmann (1

arxiv:0709.2230 v1 · 2007-09-14 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5QYOSMOKKLDMDOSFPBEQ2FHEI3}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:16:11.245631Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec30e931ca52c6c1ba4578490d14e446e5b4d4b7fa5f37779f7603a8c8894afb

Aliases

arxiv: 0709.2230 · arxiv_version: 0709.2230v1 · doi: 10.48550/arxiv.0709.2230 · pith_short_12: 5QYOSMOKKLDM · pith_short_16: 5QYOSMOKKLDMDOSF · pith_short_8: 5QYOSMOK

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/5QYOSMOKKLDMDOSFPBEQ2FHEI3 \
  | 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: ec30e931ca52c6c1ba4578490d14e446e5b4d4b7fa5f37779f7603a8c8894afb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c6a5a7bd4bb8bd03e40a5c6b175186f60f005da7f29879dec8708c4ade1139b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-09-14T08:53:23Z",
    "title_canon_sha256": "c2ae6e1a51638a1e0d9fa77c56c3c4e9fa3fe95f1693647c6ccd8166c007b450"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.2230",
    "kind": "arxiv",
    "version": 1
  }
}