Pith Number

pith:4AL5V65A

pith:2009:4AL5V65AQ5572GUNCPBZZZASAN

not attested not anchored not stored refs pending

White Paper on Ultra-High Energy Cosmic Rays

A. V. Olinto, C. D. Dermer, F. W. Stecker, J. F. Krizmanic, J. H. Adams, J. W. Mitchell, P. Sommers, T. Stanev, Y. Takahashi

arxiv:0903.0205 v1 · 2009-03-02 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4AL5V65AQ5572GUNCPBZZZASAN}

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	2026-07-04T15:38:55.162710Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e017dafba0877bfd1a8d13c39ce412036f6cf27d77b7a461c8714ac06d6e3605

Aliases

arxiv: 0903.0205 · arxiv_version: 0903.0205v1 · doi: 10.48550/arxiv.0903.0205 · pith_short_12: 4AL5V65AQ557 · pith_short_16: 4AL5V65AQ5572GUN · pith_short_8: 4AL5V65A

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/4AL5V65AQ5572GUNCPBZZZASAN \
  | 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: e017dafba0877bfd1a8d13c39ce412036f6cf27d77b7a461c8714ac06d6e3605

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e124df3b40e41952b1de5508a97f34cc474daa0c3a7c631efd6b409a9862ebab",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-03-02T03:18:36Z",
    "title_canon_sha256": "8e7832838ab3153f2ab3d9857b84400c2901ecbcc3df117f2e94ac488f18faae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.0205",
    "kind": "arxiv",
    "version": 1
  }
}