Pith Number

pith:FPTL7QW2

pith:2018:FPTL7QW2RRRX36Z2ZC67SZWXNC

not attested not anchored not stored refs pending

Environmental effects on the ionization of brown dwarf atmospheres

2, 2), (2) University of St Andrews, 3), (3) Kapteyn Astronomical Institute, Christiane Helling (1, Kenneth Wood (2) ((1) Centre for Exoplanet Science, M. Isabel Rodriguez-Barrera (1, University of Groningen), University of St Andrews

arxiv:1804.09054 v1 · 2018-04-24 · astro-ph.SR · physics.ao-ph · physics.plasm-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{FPTL7QW2RRRX36Z2ZC67SZWXNC}

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	2026-05-18T00:17:36.475191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2be6bfc2da8c637dfb3ac8bdf966d768a815a5d7874097c7feaa8e37aa34d0c7

Aliases

arxiv: 1804.09054 · arxiv_version: 1804.09054v1 · doi: 10.48550/arxiv.1804.09054 · pith_short_12: FPTL7QW2RRRX · pith_short_16: FPTL7QW2RRRX36Z2 · pith_short_8: FPTL7QW2

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/FPTL7QW2RRRX36Z2ZC67SZWXNC \
  | 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: 2be6bfc2da8c637dfb3ac8bdf966d768a815a5d7874097c7feaa8e37aa34d0c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8593d2a31a1382ba02135e3c12b2fb92846fe01f358b1c89e4ab00a2a3d0effb",
    "cross_cats_sorted": [
      "physics.ao-ph",
      "physics.plasm-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-04-24T14:06:27Z",
    "title_canon_sha256": "6e2b6573ea9588908062f7af486569d85737c0033004080cf3102a382e903aac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09054",
    "kind": "arxiv",
    "version": 1
  }
}