Pith Number

pith:6NCJTBKO

pith:2013:6NCJTBKO73N3VQTUSBV7NXOLEZ

not attested not anchored not stored refs pending

Sunspot Group Development in High Resolution

A. Ludm\'any, J. Murak\"ozy, T. Baranyi

arxiv:1309.1604 v1 · 2013-09-06 · 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{6NCJTBKO73N3VQTUSBV7NXOLEZ}

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	2026-05-18T03:02:46.765786Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f34499854efedbbac274906bf6ddcb265aab4a791c44eaf810b8e996451a43ef

Aliases

arxiv: 1309.1604 · arxiv_version: 1309.1604v1 · doi: 10.48550/arxiv.1309.1604 · pith_short_12: 6NCJTBKO73N3 · pith_short_16: 6NCJTBKO73N3VQTU · pith_short_8: 6NCJTBKO

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/6NCJTBKO73N3VQTUSBV7NXOLEZ \
  | 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: f34499854efedbbac274906bf6ddcb265aab4a791c44eaf810b8e996451a43ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "804cc5403a0356460a0d1fdb2b07e27d4625d1b9129b5a8758bd30d357ac664c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-09-06T11:25:41Z",
    "title_canon_sha256": "0fb90dbf6bdc5ee017c3b6d55b4f426049ee519baff0ec34860f9d9c45b3e2c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.1604",
    "kind": "arxiv",
    "version": 1
  }
}