Pith Number

pith:6WBIHSYW

pith:2012:6WBIHSYWKX6AZIAFED3Z4GVPXF

not attested not anchored not stored refs pending

Occurrence of extreme solar particle events: Assessment from historical proxy data

G.A. Kovaltsov, I.G. Usoskin

arxiv:1207.5932 v1 · 2012-07-25 · astro-ph.SR · astro-ph.EP · physics.geo-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{6WBIHSYWKX6AZIAFED3Z4GVPXF}

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	2026-05-18T03:25:14.591737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f58283cb1655fc0ca00520f79e1aafb96db9c34d5bfdd1e9da963cd62d7b8b31

Aliases

arxiv: 1207.5932 · arxiv_version: 1207.5932v1 · doi: 10.48550/arxiv.1207.5932 · pith_short_12: 6WBIHSYWKX6A · pith_short_16: 6WBIHSYWKX6AZIAF · pith_short_8: 6WBIHSYW

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/6WBIHSYWKX6AZIAFED3Z4GVPXF \
  | 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: f58283cb1655fc0ca00520f79e1aafb96db9c34d5bfdd1e9da963cd62d7b8b31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84fc61bb28975892236c9368bc571d25db5d5f72b9059ee5618bfb34784f1dae",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "physics.geo-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-07-25T09:19:32Z",
    "title_canon_sha256": "119847296f21a9a9c7cc067955a8c5cd9abae376bfc6be35a1ac1d958adfdc88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5932",
    "kind": "arxiv",
    "version": 1
  }
}