Pith Number

pith:LD7KUH7S

pith:2012:LD7KUH7SQJA376PN2EQMDCD6F4

not attested not anchored not stored refs pending

Behavior of Solar Cycles 23 and 24 Revealed by Microwave Observations

D. H. Hathaway, G. Michalek, K. Shibasaki, N. Gopalswamy, P. M\"akel\"a, S. Yashiro

arxiv:1204.2816 v2 · 2012-04-12 · 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{LD7KUH7SQJA376PN2EQMDCD6F4}

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	2026-05-18T01:57:53.018071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58feaa1ff28241bff9edd120c1887e2f2ae258942069fca0a7d414d64fba4a4f

Aliases

arxiv: 1204.2816 · arxiv_version: 1204.2816v2 · doi: 10.48550/arxiv.1204.2816 · pith_short_12: LD7KUH7SQJA3 · pith_short_16: LD7KUH7SQJA376PN · pith_short_8: LD7KUH7S

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/LD7KUH7SQJA376PN2EQMDCD6F4 \
  | 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: 58feaa1ff28241bff9edd120c1887e2f2ae258942069fca0a7d414d64fba4a4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3be46dcc5996976de1abb466a2f9cfa00e56091e16bd5449e0f483ba44fc9296",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-04-12T19:20:54Z",
    "title_canon_sha256": "e0fe7f9452cf16838953b9b1b85aa7ed350003f4f49f1f7c1d6366cb71faa47e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2816",
    "kind": "arxiv",
    "version": 2
  }
}