Pith Number

pith:BKPNDWOC

pith:2011:BKPNDWOCEIQWXHTVAS5UOLIERV

not attested not anchored not stored refs pending

The Crab Nebula super-flare in April 2011: extremely fast particle acceleration and gamma-ray emission

A. Argan, A. Bulgarelli, A. Ferrari, A. Giuliani, A. Morselli, A. Pellizzoni, A. Rappoldi, A.Tennant, A. Trois, A. W. Chen, C. Labanti, C. Pittori, E. Costa, E. Del Monte, E. Striani, F. Fuschino, F. Gianotti, F. Lazzarotto, F. Longo, F. Lucarelli, F. Perotti, F. Verrecchia, G. Barbiellini, G. De Paris, G. Di Cocco, G. Piano, G. Pucella, I. Donnarumma, I. Lapshov, L. Pacciani, M Cardillo, M. Feroci, M. Galli, M. Marisaldi, M. Pilia, M. Rapisarda, M. Tavani, M. Trifoglio, M. Weisskopf, P. Caraveo, P. Giommi, P. Picozza, P. Santolamazza, P. Soffitta, P. W. Cattaneo, S. Mereghetti, S.Sabatini, S. Vercellone, V. Vittorini, Y. Evangelista

arxiv:1105.5028 v2 · 2011-05-25 · 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{BKPNDWOCEIQWXHTVAS5UOLIERV}

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	2026-05-18T02:01:50.922574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a9ed1d9c222216b9e7504bb472d048d724765b6eba1e4bd854b181c1a3d2bfa

Aliases

arxiv: 1105.5028 · arxiv_version: 1105.5028v2 · doi: 10.48550/arxiv.1105.5028 · pith_short_12: BKPNDWOCEIQW · pith_short_16: BKPNDWOCEIQWXHTV · pith_short_8: BKPNDWOC

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/BKPNDWOCEIQWXHTVAS5UOLIERV \
  | 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: 0a9ed1d9c222216b9e7504bb472d048d724765b6eba1e4bd854b181c1a3d2bfa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd102372d67172ff687f8e904a6a4bb87bb9be4f3966275ea70b04f788fa9f2b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-05-25T13:53:05Z",
    "title_canon_sha256": "77e7c02f46cd185572796fb39a75659f30e1dce0d79f7213c28e99c0405f81ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.5028",
    "kind": "arxiv",
    "version": 2
  }
}