Pith Number

pith:Z7NUSX3C

pith:2011:Z7NUSX3CJ52BP4YBOYSMQY5B5J

not attested not anchored not stored refs pending

Significance of Ultra High Energy Cosmic Rays

Jasdeep Sidhu

arxiv:1102.0639 v1 · 2011-02-03 · 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{Z7NUSX3CJ52BP4YBOYSMQY5B5J}

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	2026-05-18T04:30:04.320305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfdb495f624f7417f3017624c863a1ea5d1704af6e20f46cdb054aab9418b2a9

Aliases

arxiv: 1102.0639 · arxiv_version: 1102.0639v1 · doi: 10.48550/arxiv.1102.0639 · pith_short_12: Z7NUSX3CJ52B · pith_short_16: Z7NUSX3CJ52BP4YB · pith_short_8: Z7NUSX3C

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/Z7NUSX3CJ52BP4YBOYSMQY5B5J \
  | 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: cfdb495f624f7417f3017624c863a1ea5d1704af6e20f46cdb054aab9418b2a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f72717eb4c4685985f34d286467dfcdc4a80f076c422f9a9d510d6db7922cde9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-02-03T10:18:54Z",
    "title_canon_sha256": "b9d5cf30233a2ad3edb7db87d400592418bffca206f8a2623914b29f5f1bbf47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.0639",
    "kind": "arxiv",
    "version": 1
  }
}