Pith Number

pith:2YRFZTR3

pith:2011:2YRFZTR3YHHINJGL5L7HEANS2R

not attested not anchored not stored refs pending

Two methods for the light curves extrema determination

Tomas Graf, Zdenek Mikulasek

arxiv:1111.1142 v1 · 2011-11-04 · astro-ph.IM · physics.data-an

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2YRFZTR3YHHINJGL5L7HEANS2R}

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	2026-05-18T04:09:35.642194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6225cce3bc1ce86a4cbeafe7201b2d44d83f2e32bd76ffd758257cacdc82f40

Aliases

arxiv: 1111.1142 · arxiv_version: 1111.1142v1 · doi: 10.48550/arxiv.1111.1142 · pith_short_12: 2YRFZTR3YHHI · pith_short_16: 2YRFZTR3YHHINJGL · pith_short_8: 2YRFZTR3

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/2YRFZTR3YHHINJGL5L7HEANS2R \
  | 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: d6225cce3bc1ce86a4cbeafe7201b2d44d83f2e32bd76ffd758257cacdc82f40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cab04809372c5148936e1840562bdb32feb7c7e9bfce1ff1b3f031abe6f7b67",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-11-04T14:44:20Z",
    "title_canon_sha256": "c4ea3a69bdac1c27afe04158a6c056490569ee38cf72a067448c500f7e239701"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.1142",
    "kind": "arxiv",
    "version": 1
  }
}