Pith Number

pith:BILHHEVZ

pith:2009:BILHHEVZR2KJJQIKE4XMWSFWNU

not attested not anchored not stored refs pending

Planetary companion candidates around the K giant stars 42 Dra and HD 139357

A.P. Hatzes, E.W. Guenther, L. Girardi, L. Pasquini, M. Hartmann, M.P. Doellinger

arxiv:0903.3593 v1 · 2009-03-20 · 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{BILHHEVZR2KJJQIKE4XMWSFWNU}

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	2026-05-18T02:14:26.907382Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a167392b98e9494c10a272ecb48b66d01fb2c0d4b2537c3f5de7fdf04646c28

Aliases

arxiv: 0903.3593 · arxiv_version: 0903.3593v1 · doi: 10.48550/arxiv.0903.3593 · pith_short_12: BILHHEVZR2KJ · pith_short_16: BILHHEVZR2KJJQIK · pith_short_8: BILHHEVZ

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/BILHHEVZR2KJJQIKE4XMWSFWNU \
  | 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: 0a167392b98e9494c10a272ecb48b66d01fb2c0d4b2537c3f5de7fdf04646c28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efab9812113f221bb6a8ff07dd71fbe4ad29f96dbefb785d6b537919efb1aae6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-03-20T19:23:41Z",
    "title_canon_sha256": "64bfca0290c33296d7232b3b85faa718740ac49dde7cd532c5de149ee7b4cfc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3593",
    "kind": "arxiv",
    "version": 1
  }
}