Pith Number

pith:QGBG5D72

pith:2012:QGBG5D72IZEBWHBNCGUEGGTMRV

not attested not anchored not stored refs pending

Theoretical Models of Stellar Activity Cycles

Emre I\c{s}ik

arxiv:1211.1408 v1 · 2012-11-06 · 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{QGBG5D72IZEBWHBNCGUEGGTMRV}

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	2026-05-18T03:41:21.001816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81826e8ffa46481b1c2d11a8431a6c8d4696d06a23b3d9c5bdfe994fed1f5c2e

Aliases

arxiv: 1211.1408 · arxiv_version: 1211.1408v1 · doi: 10.48550/arxiv.1211.1408 · pith_short_12: QGBG5D72IZEB · pith_short_16: QGBG5D72IZEBWHBN · pith_short_8: QGBG5D72

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/QGBG5D72IZEBWHBNCGUEGGTMRV \
  | 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: 81826e8ffa46481b1c2d11a8431a6c8d4696d06a23b3d9c5bdfe994fed1f5c2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac90abfdd67e5767fc710c0b2c476777630745b38714c0146500c5351f8be06b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-11-06T22:01:55Z",
    "title_canon_sha256": "1821cb839fd56a44f97ef29ac1273837f21cb935b5ee92b31f49a69b9f3605eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1408",
    "kind": "arxiv",
    "version": 1
  }
}