Pith Number

pith:UVKD5OXP

pith:2004:UVKD5OXPIHTYJ7VVIM3BBGCEWO

not attested not anchored not stored refs pending

Optical and infrared photometry of new very low-mass stars and brown dwarfs in the Sigma Orionis cluster

(2) Laeff-Inta, 3) ((1) Instituto de Astrofisica de Canarias, (3) Consejo Superior de Investigaciones Cientificas, La Laguna, Madrid, M. R. Zapatero Osorio (2), R. Rebolo (1, Spain, Spain), V. J. S. Bejar (1)

arxiv:astro-ph/0404125 v1 · 2004-04-06 · 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{UVKD5OXPIHTYJ7VVIM3BBGCEWO}

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	2026-05-18T01:40:37.180368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5543ebaef41e784feb54336109844b390d84f1a574d5f238aeea5e2fc7526ef

Aliases

arxiv: astro-ph/0404125 · arxiv_version: astro-ph/0404125v1 · doi: 10.48550/arxiv.astro-ph/0404125 · pith_short_12: UVKD5OXPIHTY · pith_short_16: UVKD5OXPIHTYJ7VV · pith_short_8: UVKD5OXP

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/UVKD5OXPIHTYJ7VVIM3BBGCEWO \
  | 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: a5543ebaef41e784feb54336109844b390d84f1a574d5f238aeea5e2fc7526ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99fcb4b01537362ab89c1dbdb2e514e835c9dc4206ae0e12416b64a76d1e836e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-04-06T10:11:04Z",
    "title_canon_sha256": "8962beeb5a975580d6095dbf0cab61f097f1941504d0cf9964ba77702aced02f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0404125",
    "kind": "arxiv",
    "version": 1
  }
}