Pith Number

pith:KX5UVDBR

pith:1999:KX5UVDBRCVFLWQKDGJYVCFECNY

not attested not anchored not stored refs pending

An L-type substellar object in Orion: reaching the mass boundary between brown dwarfs and giant planets

E. L. Martin (UC Berkeley), G. Basri (UC Berkeley), M. R. Zapatero Osorio (IAC), R. Rebolo (IAC), V. J. S. Bejar (IAC)

arxiv:astro-ph/9908223 v1 · 1999-08-19 · 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{KX5UVDBRCVFLWQKDGJYVCFECNY}

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	2026-07-04T16:11:31.887839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55fb4a8c31154abb414332715114826e2d369bdd93e82ad103d2ecc069cb6bf9

Aliases

arxiv: astro-ph/9908223 · arxiv_version: astro-ph/9908223v1 · doi: 10.48550/arxiv.astro-ph/9908223 · pith_short_12: KX5UVDBRCVFL · pith_short_16: KX5UVDBRCVFLWQKD · pith_short_8: KX5UVDBR

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/KX5UVDBRCVFLWQKDGJYVCFECNY \
  | 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: 55fb4a8c31154abb414332715114826e2d369bdd93e82ad103d2ecc069cb6bf9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b498b82770dac60963c8891addc099a1ecff26858794738e03bf2970e8428ecf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-08-19T22:37:05Z",
    "title_canon_sha256": "00eb5ca92e86b6dd8729bd4003f102ca33a006fc7936e2d6b5de0fae4afb4f70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9908223",
    "kind": "arxiv",
    "version": 1
  }
}