Pith Number

pith:UQ3WHTFC

pith:2016:UQ3WHTFCCYPITPYOKMFWEG6IMH

not attested not anchored not stored refs pending

The cosmic-ray ground-level enhancements of 29 September 1989 and 20 January 2005

H. Moraal, K. G. McCracken, R. A. Caballero-Lopez

arxiv:1610.04635 v1 · 2016-04-26 · physics.space-ph · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UQ3WHTFCCYPITPYOKMFWEG6IMH}

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	2026-05-18T01:02:11.971613Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a43763cca2161e89bf0e530b621bc861d2ddec276ae0b3f822862ea5dba5b01f

Aliases

arxiv: 1610.04635 · arxiv_version: 1610.04635v1 · doi: 10.48550/arxiv.1610.04635 · pith_short_12: UQ3WHTFCCYPI · pith_short_16: UQ3WHTFCCYPITPYO · pith_short_8: UQ3WHTFC

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/UQ3WHTFCCYPITPYOKMFWEG6IMH \
  | 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: a43763cca2161e89bf0e530b621bc861d2ddec276ae0b3f822862ea5dba5b01f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "718fffa09b1bc76e33dde12d1001b35ba8f8aaf9d3a78c6addce39942090b517",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.space-ph",
    "submitted_at": "2016-04-26T03:24:32Z",
    "title_canon_sha256": "558b2342abb5c99027b19c60c5b191ae09a00081e977ea0736f54c1250be3477"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.04635",
    "kind": "arxiv",
    "version": 1
  }
}