Pith Number

pith:4HEPO4KH

pith:2009:4HEPO4KH7OCL5LFPIUAUVEOGUE

not attested not anchored not stored refs pending

Indications of Proton-Dominated Cosmic Ray Composition above 1.6 EeV

A. O'Neill, A. Zech, B.F Jones, B.T. Stokes, C.A. Painter, C.B. Finley, C. Cannon, C.C.H. Jui, C.M. Hoffman, C. Song, D.R. Bergman, D. Rodriguez, D. Tupa, E.C. Loh, G. Archbold, G.B. Thomson, G. Hughes, G. Sinnis, G.W. Burt, J.A.J. Matthews, J.D. Smith, J.F. Amman, J.N. Matthews, J.P. Lundquist, J.R. Thomas, J.W. Belz, K. Belov, K. Kim, K. Martens, K. Reil, L.J. Marek, L.M. Scott, L. Perera, M.A. Kirn, M. Allen, M. Al-Seady, M.H. Holzscheiter, M.M. Maestas, M. Roberts, N. Manago, N. Sasaki, O.A. Brusova, P. Huentemeyer, P. Sokolsky, R.C. Gray, R.J. Anderson, R. Riehle, R.U. Abbasi, R.W. Springer, S.A. Blake, S.A. Moore, S.B. Thomas, S.R. Schnetzer, S. Stratton, T. Abu-Zayyad, W. Deng, W.F. Hanlon, X. Zhang, Y. Fedorova, Z. Cao

arxiv:0910.4184 v2 · 2009-10-21 · 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{4HEPO4KH7OCL5LFPIUAUVEOGUE}

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.

Cited by

2 papers in Pith

TeV-PeV Gamma-ray and Neutrino Emission in the Galactic Plane

Study of Flat Spectrum Radio Quasars and BL Lacertae Objects as Sources of Diffusive Ultra High-Energy Cosmic Rays

Receipt and verification

First computed	2026-07-04T17:27:28.489711Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1c8f77147fb84beacaf45014a91c6a12b4ca2ae3e6a627921f29931a4cc4ede

Aliases

arxiv: 0910.4184 · arxiv_version: 0910.4184v2 · doi: 10.48550/arxiv.0910.4184 · pith_short_12: 4HEPO4KH7OCL · pith_short_16: 4HEPO4KH7OCL5LFP · pith_short_8: 4HEPO4KH

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/4HEPO4KH7OCL5LFPIUAUVEOGUE \
  | 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: e1c8f77147fb84beacaf45014a91c6a12b4ca2ae3e6a627921f29931a4cc4ede

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62bd4dcf4e5ec199ad6864b4bfd3ce04742df746342d9e2b1819109881f6c5b9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-10-21T21:42:14Z",
    "title_canon_sha256": "d3828c327c63586deda75730af6be02d97b7c58434de1cc0f580bd70df2b482d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4184",
    "kind": "arxiv",
    "version": 2
  }
}