Pith Number

pith:CCQ5YMJI

pith:2003:CCQ5YMJINRMDL2YYC3IWM2A4F6

not attested not anchored not stored refs pending

A Study of the Ground Level Event of April 15, 2001 with GRAND

C. D'Andrea, J. Poirier

arxiv:astro-ph/0306363 v1 · 2003-06-18 · 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{CCQ5YMJINRMDL2YYC3IWM2A4F6}

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	2026-07-04T14:12:46.986630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10a1dc31286c5835eb1816d166681c2fa93a8ead278ead3b742f0dda5f111b09

Aliases

arxiv: astro-ph/0306363 · arxiv_version: astro-ph/0306363v1 · doi: 10.48550/arxiv.astro-ph/0306363 · pith_short_12: CCQ5YMJINRMD · pith_short_16: CCQ5YMJINRMDL2YY · pith_short_8: CCQ5YMJI

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/CCQ5YMJINRMDL2YYC3IWM2A4F6 \
  | 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: 10a1dc31286c5835eb1816d166681c2fa93a8ead278ead3b742f0dda5f111b09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10792e412aa78750ff7c1662ac9c36b35198a6bced80d43fa0920a5b76f0275d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-06-18T15:41:19Z",
    "title_canon_sha256": "5e5b83f277d4558377eaeafb9f9394b5c885f1fc6d976e322e99778a0a8befd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0306363",
    "kind": "arxiv",
    "version": 1
  }
}