Pith Number

pith:RUE4J2EP

pith:2001:RUE4J2EPUQHC2N3M6IORQSFMTB

not attested not anchored not stored refs pending

A probable planetary companion to HD 39091 from the Anglo-Australian Planet Search

Alan J. Penny, Brad D. Carter, C.G. Tinney, Chris McCarthy, Dimitri Pourbaix, Geoffrey W. Marcy, Hugh R. A. Jones, R. Paul Butler

arxiv:astro-ph/0112084 v1 · 2001-12-04 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RUE4J2EPUQHC2N3M6IORQSFMTB}

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	2026-05-18T04:27:05.276894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d09c4e88fa40e2d376cf21d1848ac9875323afe95da39193a23d8d635e58efe

Aliases

arxiv: astro-ph/0112084 · arxiv_version: astro-ph/0112084v1 · doi: 10.48550/arxiv.astro-ph/0112084 · pith_short_12: RUE4J2EPUQHC · pith_short_16: RUE4J2EPUQHC2N3M · pith_short_8: RUE4J2EP

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/RUE4J2EPUQHC2N3M6IORQSFMTB \
  | 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: 8d09c4e88fa40e2d376cf21d1848ac9875323afe95da39193a23d8d635e58efe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e1a473b82c01b8c6521e7a23cb9fdde4fd03b8a247bec65db82ee2d31de1b01",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-12-04T18:19:27Z",
    "title_canon_sha256": "5bee32bf227f4d21ae5ea1451263ccd2c0c3985f08a183084d50b0aaebe23691"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0112084",
    "kind": "arxiv",
    "version": 1
  }
}