Pith Number

pith:U2X7NJIT

pith:2002:U2X7NJITP2YJ7PIUQ2FYF2BYZB

not attested not anchored not stored refs pending

The Enigma of the Highest Energy Particles of Nature

Guenter Sigl (GReCO, Institut d'Astrophysique de Paris)

arxiv:astro-ph/0210049 v1 · 2002-10-02 · astro-ph · hep-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U2X7NJITP2YJ7PIUQ2FYF2BYZB}

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	2026-07-04T16:30:53.336014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6aff6a5137eb09fbd14868b82e838c845df80a0081a80eb250781c35db05e37

Aliases

arxiv: astro-ph/0210049 · arxiv_version: astro-ph/0210049v1 · doi: 10.48550/arxiv.astro-ph/0210049 · pith_short_12: U2X7NJITP2YJ · pith_short_16: U2X7NJITP2YJ7PIU · pith_short_8: U2X7NJIT

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/U2X7NJITP2YJ7PIUQ2FYF2BYZB \
  | 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: a6aff6a5137eb09fbd14868b82e838c845df80a0081a80eb250781c35db05e37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3cbd0e900a0f6f31fdb017cd2e752fcd77119d57aa535586169cfc80f3ccf1e",
    "cross_cats_sorted": [
      "hep-ph",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-10-02T19:48:59Z",
    "title_canon_sha256": "67f01dcaafe55dee66b53193348405efb24d53a391038ccd034de061eb6e11ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0210049",
    "kind": "arxiv",
    "version": 1
  }
}