Pith Number

pith:2QHSQUFQ

pith:2012:2QHSQUFQTK5BJY4XRWZ4OC3KK6

not attested not anchored not stored refs pending

Energetic Particle and Other Space Weather Events of Solar Cycle 24

Nat Gopalswamy

arxiv:1208.3951 v2 · 2012-08-20 · 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{2QHSQUFQTK5BJY4XRWZ4OC3KK6}

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	2026-05-18T01:55:09.274034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d40f2850b09aba14e3978db3c70b6a57915a4a42c973d351282321b8fe878417

Aliases

arxiv: 1208.3951 · arxiv_version: 1208.3951v2 · doi: 10.48550/arxiv.1208.3951 · pith_short_12: 2QHSQUFQTK5B · pith_short_16: 2QHSQUFQTK5BJY4X · pith_short_8: 2QHSQUFQ

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/2QHSQUFQTK5BJY4XRWZ4OC3KK6 \
  | 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: d40f2850b09aba14e3978db3c70b6a57915a4a42c973d351282321b8fe878417

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3c359b236769eec8619fe62539405e429963961d7328960ef97fd62f3356f73",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-08-20T09:16:03Z",
    "title_canon_sha256": "761de34a1503f8ec5387b92f4d9953ebb9074d7f1473915254942dd1b582ffde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.3951",
    "kind": "arxiv",
    "version": 2
  }
}