Pith Number

pith:UBIQ4YII

pith:2005:UBIQ4YII233EV5YVBIRQPPO46U

not attested not anchored not stored refs pending

A companion to AB Pic at the planet/brown dwarf boundary

A.-M. Lagrange, B. Zuckerman, C. Dumas, D. Mouillet, G. Chauvin, I. Song, J.-L. Beuzit, M.S. Bessell, P. Lowrance

arxiv:astro-ph/0504658 v1 · 2005-04-29 · 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{UBIQ4YII233EV5YVBIRQPPO46U}

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	2026-05-18T02:40:25.673908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0510e6108d6f64af7150a2307bddcf5290238910837f91ba4f9eff4bf6c3ccb

Aliases

arxiv: astro-ph/0504658 · arxiv_version: astro-ph/0504658v1 · doi: 10.48550/arxiv.astro-ph/0504658 · pith_short_12: UBIQ4YII233E · pith_short_16: UBIQ4YII233EV5YV · pith_short_8: UBIQ4YII

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/UBIQ4YII233EV5YVBIRQPPO46U \
  | 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: a0510e6108d6f64af7150a2307bddcf5290238910837f91ba4f9eff4bf6c3ccb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0635bb05759f052bf9045a4a5c81bd266e898e06902f027f51430ac2c3f341a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-04-29T11:14:57Z",
    "title_canon_sha256": "5e97879ce29ac6e889fd1537bd02046a9732c7f3902e5c1c8b6afdecd3946c99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0504658",
    "kind": "arxiv",
    "version": 1
  }
}