Pith Number

pith:WJUBGFF7

pith:2008:WJUBGFF7UDMPC3YAZGNYPN2ZVF

not attested not anchored not stored refs pending

Dust in Brown Dwarfs and Extra-solar Planets I. Chemical composition and spectral appearance of quasi-static cloud layers

Ch. Helling, P. Woitke, W.-F. Thi

arxiv:0803.4315 v1 · 2008-03-30 · 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{WJUBGFF7UDMPC3YAZGNYPN2ZVF}

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.

Cited by

1 paper in Pith

Benchmark Brown Dwarf Systems I: Chemical Abundance Analysis of FGK Stars with Wide-Separation Brown Dwarf Companions Using PEPSI

Receipt and verification

First computed	2026-07-04T17:10:01.464941Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2681314bfa0d8f16f00c99b87b759a94d5640139e2303d80376599a4d6993b1

Aliases

arxiv: 0803.4315 · arxiv_version: 0803.4315v1 · doi: 10.48550/arxiv.0803.4315 · pith_short_12: WJUBGFF7UDMP · pith_short_16: WJUBGFF7UDMPC3YA · pith_short_8: WJUBGFF7

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/WJUBGFF7UDMPC3YAZGNYPN2ZVF \
  | 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: b2681314bfa0d8f16f00c99b87b759a94d5640139e2303d80376599a4d6993b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd8ecb7269f7282907b9b9a30a719ba9259aa5e82158c3441e696389f58342e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-03-30T12:05:48Z",
    "title_canon_sha256": "1081a4f5608330b58e63e5b64ba9aecbfced365807a6f4bb9c64ae926b782da5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.4315",
    "kind": "arxiv",
    "version": 1
  }
}