Pith Number

pith:3FGIZI7K

pith:2011:3FGIZI7K5R4HXTOE4S7R2MCSUC

not attested not anchored not stored refs pending

Neutral pion emission from accelerated protons in the supernova remnant W44

A. Bulgarelli, A. Chen, A. Giuliani, A. Pellizzoni, A. Rappoldi, A. Trois, C. Pittori, E. Costa, E. Del Monte, E. Striani, F. Gianotti, F. Lazzarotto, F. Longo, F. Lucarelli, F. Verrecchia, G. Barbiellini, G. Bignami, G. Castelletti, G. Dubner, G. Piano, G. Pucella, I. Donnarumma, K. Torii, L. Pacciani, M. Cardillo, M. Feroci, M. Marisaldi, M. Rapisarda, M. Tavani, M. Trifoglio, P. Caraveo, P. Giommi, P. Picozza, P. Soffitta, P. W. Cattaneo, S. Colafrancesco, S. Mereghetti, S. Sabatini, S. Vercellone, S. Yoshiike, T. Contessi, V. Vittorini, Y. Evangelista, Y. Fukui

arxiv:1111.4868 v1 · 2011-11-21 · 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{3FGIZI7K5R4HXTOE4S7R2MCSUC}

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	2026-05-18T01:59:27.512527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d94c8ca3eaec787bcdc4e4bf1d3052a0bc6842c278d8583ba6512c480716659b

Aliases

arxiv: 1111.4868 · arxiv_version: 1111.4868v1 · doi: 10.48550/arxiv.1111.4868 · pith_short_12: 3FGIZI7K5R4H · pith_short_16: 3FGIZI7K5R4HXTOE · pith_short_8: 3FGIZI7K

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/3FGIZI7K5R4HXTOE4S7R2MCSUC \
  | 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: d94c8ca3eaec787bcdc4e4bf1d3052a0bc6842c278d8583ba6512c480716659b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1ada05419538bd28d282881ead292697a3e10a0dca978f1fe461e51e7e8eb07",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-11-21T13:34:06Z",
    "title_canon_sha256": "a93c1780ade1863838986e0f0fc5e1353c922da28d990d3e2182223da19365f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.4868",
    "kind": "arxiv",
    "version": 1
  }
}