Pith Number

pith:AL6E7T7Z

pith:2013:AL6E7T7ZZVPY344CGTOLOACAOB

not attested not anchored not stored refs pending

Network and Plage Indices from Kodaikanal Ca-K Data

Jagdev Singh, K.P. Raju

arxiv:1308.5554 v1 · 2013-08-26 · 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{AL6E7T7ZZVPY344CGTOLOACAOB}

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	2026-05-18T01:47:58.599137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02fc4fcff9cd5f8df38234dcb700407047e37cc8619b9870beeb2fb5e817d2b8

Aliases

arxiv: 1308.5554 · arxiv_version: 1308.5554v1 · doi: 10.48550/arxiv.1308.5554 · pith_short_12: AL6E7T7ZZVPY · pith_short_16: AL6E7T7ZZVPY344C · pith_short_8: AL6E7T7Z

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/AL6E7T7ZZVPY344CGTOLOACAOB \
  | 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: 02fc4fcff9cd5f8df38234dcb700407047e37cc8619b9870beeb2fb5e817d2b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9513c1b262b22e027c4e7cbab09b69e8fa16a193afb61de3abf082476fe2d02a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-08-26T12:23:27Z",
    "title_canon_sha256": "1a0457a705c63c009141d0b2189a3b9a65ad356c8932cb01ce321a50c10aba9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.5554",
    "kind": "arxiv",
    "version": 1
  }
}