Pith Number

pith:UUPT6IGY

pith:2003:UUPT6IGYL7NOTPAC5CQHWOTEQ6

not attested not anchored not stored refs pending

The GZK cutoff behind a Magnetized Universe

Antoine Letessier-Selvon, Etienne Parizot, Olivier Deligny

arxiv:astro-ph/0303624 v2 · 2003-03-28 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UUPT6IGYL7NOTPAC5CQHWOTEQ6}

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	2026-05-18T04:21:41.543708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a51f3f20d85fdae9bc02e8a07b3a6487be69c00593c2510f439ee109e8a97431

Aliases

arxiv: astro-ph/0303624 · arxiv_version: astro-ph/0303624v2 · doi: 10.48550/arxiv.astro-ph/0303624 · pith_short_12: UUPT6IGYL7NO · pith_short_16: UUPT6IGYL7NOTPAC · pith_short_8: UUPT6IGY

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/UUPT6IGYL7NOTPAC5CQHWOTEQ6 \
  | 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: a51f3f20d85fdae9bc02e8a07b3a6487be69c00593c2510f439ee109e8a97431

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eaba399a382a8614de2e7ea0bfa20536c1055e3486a5e7e9fd1060d72c6f3f5e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-03-28T14:43:27Z",
    "title_canon_sha256": "72aa37c72a062f950ccb66427de99e04e13df30780227940599d92240d44298a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0303624",
    "kind": "arxiv",
    "version": 2
  }
}