Pith Number

pith:IEFOKA2F

pith:2003:IEFOKA2FTDGBPVU6V3V6XRO2BW

not attested not anchored not stored refs pending

Ultra High Energy Cosmic Rays and de Sitter Vacua

David A. Lowe, Gian Luigi Alberghi, Kevin Goldstein

arxiv:astro-ph/0307413 v2 · 2003-07-23 · astro-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IEFOKA2FTDGBPVU6V3V6XRO2BW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:40:38.478370Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

410ae5034598cc17d69eaeebebc5da0da5773d2758777e0047efa7c60be75e40

Aliases

arxiv: astro-ph/0307413 · arxiv_version: astro-ph/0307413v2 · doi: 10.48550/arxiv.astro-ph/0307413 · pith_short_12: IEFOKA2FTDGB · pith_short_16: IEFOKA2FTDGBPVU6 · pith_short_8: IEFOKA2F

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/IEFOKA2FTDGBPVU6V3V6XRO2BW \
  | 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: 410ae5034598cc17d69eaeebebc5da0da5773d2758777e0047efa7c60be75e40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfd3264abd61fd773e594ddad68637fd2379d22c24ab0c07a2b764bdb3ae79be",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-07-23T21:09:38Z",
    "title_canon_sha256": "086316b91238598d595cd406dfe5208da51f908a5a98fc138f61ec0475e28dad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0307413",
    "kind": "arxiv",
    "version": 2
  }
}