Pith Number

pith:Y7OX4OBJ

pith:2001:Y7OX4OBJ45QTCBGPUYFVKIWDOL

not attested not anchored not stored refs pending

Ground-based exoplanet near-infrared search by imaging and spectroscopy: 3 new companion candidates in TWA

Eike W. Guenther (TLS Tautenburg), Fernando Comeron (ESO Garching), Jean-Gabriel Cuby (ESO Chile), Joao Alves, Monika G. Petr (MPIfR Bonn), Nuria Huelamo (MPE), Ralph Neuhaeuser (MPE Garching & IfA Honolulu), Wolfgang Brandner

arxiv:astro-ph/0102265 v1 · 2001-02-15 · 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{Y7OX4OBJ45QTCBGPUYFVKIWDOL}

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	2026-07-04T14:11:04.180877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7dd7e3829e7613104cfa60b5522c372ff8079fe9a5c182f33ed3d9adec3c5e6

Aliases

arxiv: astro-ph/0102265 · arxiv_version: astro-ph/0102265v1 · doi: 10.48550/arxiv.astro-ph/0102265 · pith_short_12: Y7OX4OBJ45QT · pith_short_16: Y7OX4OBJ45QTCBGP · pith_short_8: Y7OX4OBJ

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/Y7OX4OBJ45QTCBGPUYFVKIWDOL \
  | 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: c7dd7e3829e7613104cfa60b5522c372ff8079fe9a5c182f33ed3d9adec3c5e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22a9b6a452a4c4865ab7fc745477a73f092c7eec95a67c7950a15e4bbb710b5b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-02-15T07:18:58Z",
    "title_canon_sha256": "873a2089350b2d7e68b36f8cf5f73cf8bf417dc3951ce047d45e0435c9a1161e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0102265",
    "kind": "arxiv",
    "version": 1
  }
}