Pith Number

pith:2CDGCLJW

pith:2009:2CDGCLJWAHNMWVHFM7I2YPN46Z

not attested not anchored not stored refs pending

A Uniform Analysis of 118 Stars with High-Contrast Imaging: Long Period Extrasolar Giant Planets are Rare around Sun-like Stars

Eric L. Nielsen, Laird M. Close (Steward Observatory)

arxiv:0909.4531 v1 · 2009-09-24 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2CDGCLJWAHNMWVHFM7I2YPN46Z}

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	2026-05-18T02:34:27.766182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d086612d3601dacb54e567d1ac3dbcf642bb71e3eb703513fa203979ebff627c

Aliases

arxiv: 0909.4531 · arxiv_version: 0909.4531v1 · doi: 10.48550/arxiv.0909.4531 · pith_short_12: 2CDGCLJWAHNM · pith_short_16: 2CDGCLJWAHNMWVHF · pith_short_8: 2CDGCLJW

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/2CDGCLJWAHNMWVHFM7I2YPN46Z \
  | 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: d086612d3601dacb54e567d1ac3dbcf642bb71e3eb703513fa203979ebff627c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92d996a6d109bd8a193539dfaff1e6d8215b454d639349b214e4278c0c24e58d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-09-24T20:59:34Z",
    "title_canon_sha256": "4c60c9428b493eadc5f78d5d893f2691ea30be3ad49c8327093a5642711ed5a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.4531",
    "kind": "arxiv",
    "version": 1
  }
}