Pith Number

pith:OLYNAM4W

pith:2011:OLYNAM4WTT2D2XZM6F5RRKPVDU

not attested not anchored not stored refs pending

Random forest automated supervised classification of Hipparcos periodic variable stars

A. Jan, I. Lecoeur, J. Blomme, J. Cuypers, J. De Ridder, K. Nienartowicz, L. Eyer, L. Guy, L. M. Sarro, L. Rimoldini, M. Beck, M. L\'opez, M. S\"uveges, N. Mowlavi, P. De Cat, P. Dubath, T. Lebzelter

arxiv:1101.2406 v2 · 2011-01-12 · 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{OLYNAM4WTT2D2XZM6F5RRKPVDU}

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	2026-05-18T02:03:40.812971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72f0d033969cf43d5f2cf17b18a9f51d10241dd97bd4a52fab6b2dae55be18c7

Aliases

arxiv: 1101.2406 · arxiv_version: 1101.2406v2 · doi: 10.48550/arxiv.1101.2406 · pith_short_12: OLYNAM4WTT2D · pith_short_16: OLYNAM4WTT2D2XZM · pith_short_8: OLYNAM4W

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/OLYNAM4WTT2D2XZM6F5RRKPVDU \
  | 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: 72f0d033969cf43d5f2cf17b18a9f51d10241dd97bd4a52fab6b2dae55be18c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5af9701e8fedace755f27c18dc0d0a54d4bd90438be2cdd3163ce7aed34333ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-01-12T17:10:46Z",
    "title_canon_sha256": "e31fb396157384bd8f13e171bb651b7d3f9177fb5c48aa9c2b32bee1d3bdd0f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2406",
    "kind": "arxiv",
    "version": 2
  }
}