Pith Number

pith:VWD7GD6M

pith:2010:VWD7GD6MWJC235JXCGPOEOSLXI

not attested not anchored not stored refs pending

Does the gamma-ray flux of the blazar 3C 454.3 vary on sub-hour timescales?

F. Tavecchio, G. Bonnoli (INAF OA Brera, G. Ghirlanda, G. Ghisellini, G. Tagliaferri, Italy), L. Foschini

arxiv:1004.4518 v2 · 2010-04-26 · 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{VWD7GD6MWJC235JXCGPOEOSLXI}

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	2026-05-18T02:07:53.826352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad87f30fccb245adf537119ee23a4bba1c3c7b6a61d4d211e911708b495e5768

Aliases

arxiv: 1004.4518 · arxiv_version: 1004.4518v2 · doi: 10.48550/arxiv.1004.4518 · pith_short_12: VWD7GD6MWJC2 · pith_short_16: VWD7GD6MWJC235JX · pith_short_8: VWD7GD6M

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/VWD7GD6MWJC235JXCGPOEOSLXI \
  | 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: ad87f30fccb245adf537119ee23a4bba1c3c7b6a61d4d211e911708b495e5768

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e577c7adcb19e370852054bff2b7b411fd79389fe545086a44a90ba0d1284d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-04-26T13:16:41Z",
    "title_canon_sha256": "656332627be107654404676a9318959889c3f4515991e171a114823499a0e47e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.4518",
    "kind": "arxiv",
    "version": 2
  }
}