Pith Number

pith:Z45RMWO5

pith:2018:Z45RMWO5XA63PYEPMWHEE5CYSW

not attested not anchored not stored refs pending

Dark structures in sunspot light bridges

Haimin Wang, Hardi Peter, Hui Tian, Jiansen He, Jingwen Zhang, Kwangsu Ahn, Linghua Wang, Sami K. Solanki, Wenda Cao, Yan Xu, Yingjie Zhu

arxiv:1809.00146 v1 · 2018-09-01 · 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{Z45RMWO5XA63PYEPMWHEE5CYSW}

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	2026-05-18T00:03:45.321906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf3b1659ddb83db7e08f658e42745895944ed2d5c2ce915895bcdedcb02b59f3

Aliases

arxiv: 1809.00146 · arxiv_version: 1809.00146v1 · doi: 10.48550/arxiv.1809.00146 · pith_short_12: Z45RMWO5XA63 · pith_short_16: Z45RMWO5XA63PYEP · pith_short_8: Z45RMWO5

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/Z45RMWO5XA63PYEPMWHEE5CYSW \
  | 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: cf3b1659ddb83db7e08f658e42745895944ed2d5c2ce915895bcdedcb02b59f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fea53f127dc9e216b5883e6a9968203810c23a664fe78b84bd6c15eaa10d8a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-09-01T10:17:46Z",
    "title_canon_sha256": "dc55372f75b4071fa6b007741bd6eafc422235ab25d2faf65dd5ce0f2e153b34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.00146",
    "kind": "arxiv",
    "version": 1
  }
}