Pith Number

pith:PWL6D2QU

pith:2011:PWL6D2QU2FSHXGRYIUCB4YRKUM

not attested not anchored not stored refs pending

Ionisation in atmospheres of Brown Dwarfs and extrasolar planets II Dust-induced collisional ionization

Ch. Helling (Univ of St Andrews), F. Mokler (MPIG, Hannover), M. Jardine (Univ of St Andrews)

arxiv:1105.4409 v1 · 2011-05-23 · astro-ph.SR · astro-ph.EP · astro-ph.HE · 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{PWL6D2QU2FSHXGRYIUCB4YRKUM}

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	2026-05-18T02:01:52.836152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d97e1ea14d1647b9a3845041e622aa337bbaa97af373f19871509e163cf0fc5

Aliases

arxiv: 1105.4409 · arxiv_version: 1105.4409v1 · doi: 10.48550/arxiv.1105.4409 · pith_short_12: PWL6D2QU2FSH · pith_short_16: PWL6D2QU2FSHXGRY · pith_short_8: PWL6D2QU

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/PWL6D2QU2FSHXGRYIUCB4YRKUM \
  | 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: 7d97e1ea14d1647b9a3845041e622aa337bbaa97af373f19871509e163cf0fc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62e9239e0d9560430fb3fed741829e4e966eeb47d9fdfba4e73d2a6c656cd1fb",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.HE",
      "physics.ao-ph",
      "physics.plasm-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-05-23T06:03:29Z",
    "title_canon_sha256": "2c3940e684f71e18a8d34de5b53e7fdaf82630818696b4186484d34386701133"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.4409",
    "kind": "arxiv",
    "version": 1
  }
}