Pith Number

pith:FM2WDEYB

pith:2022:FM2WDEYBA3XJ4JW5WFRQ2UASFV

not attested not anchored not stored refs pending

Cosmic Ray Intensity Variation Lags Sunspot number: Implications of Late Opening of Solar Magnetic Field

Elias Roussos, Gang Li, Jingnan Guo, Junwei Zhao, Yuming Wang

arxiv:2201.01908 v2 · 2022-01-06 · 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{FM2WDEYBA3XJ4JW5WFRQ2UASFV}

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	2026-07-05T04:12:05.628526Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b3561930106ee9e26ddb1630d50122d5a69beb4e00f3a69e5f6e22e375705ed

Aliases

arxiv: 2201.01908 · arxiv_version: 2201.01908v2 · doi: 10.48550/arxiv.2201.01908 · pith_short_12: FM2WDEYBA3XJ · pith_short_16: FM2WDEYBA3XJ4JW5 · pith_short_8: FM2WDEYB

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/FM2WDEYBA3XJ4JW5WFRQ2UASFV \
  | 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: 2b3561930106ee9e26ddb1630d50122d5a69beb4e00f3a69e5f6e22e375705ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ec30463175ed4f2e16835fc1f9bcb713d700c375e0d20904c95f7be367d9b2c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2022-01-06T03:31:16Z",
    "title_canon_sha256": "a0a86537a2457400a084253b751ba4f1acfdf2ec3619ef3009ad40ec9c646d09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.01908",
    "kind": "arxiv",
    "version": 2
  }
}