Pith Number

pith:4L5D5ONR

pith:2012:4L5D5ONRZI2G5KYXMU4VLLIOOW

not attested not anchored not stored refs pending

Properties of Ground Level Enhancement Events and the Associated Solar Eruptions during Solar Cycle 23

H. Xie, I. G. Usoskin, N. Gopalswamy, P. M\"akel\"a, S. Akiyama, S. Yashiro

arxiv:1205.0688 v1 · 2012-05-03 · 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{4L5D5ONRZI2G5KYXMU4VLLIOOW}

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	2026-05-18T01:57:38.451574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2fa3eb9b1ca346eab17653955ad0e75bc90b8f8eabb06ef17dda775de22ef51

Aliases

arxiv: 1205.0688 · arxiv_version: 1205.0688v1 · doi: 10.48550/arxiv.1205.0688 · pith_short_12: 4L5D5ONRZI2G · pith_short_16: 4L5D5ONRZI2G5KYX · pith_short_8: 4L5D5ONR

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/4L5D5ONRZI2G5KYXMU4VLLIOOW \
  | 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: e2fa3eb9b1ca346eab17653955ad0e75bc90b8f8eabb06ef17dda775de22ef51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b683d030e43e240f9f4c41ddb53dd217506bb006f9a3e51a16a5621d5a24e534",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-05-03T12:13:20Z",
    "title_canon_sha256": "8be8b7fc044039168645e22c5e814912f463d77c055967dfa896b065e1b2836e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0688",
    "kind": "arxiv",
    "version": 1
  }
}