Pith Number

pith:WESP6KIO

pith:2013:WESP6KIOUNIWYVRS6B2GUGYNJW

not attested not anchored not stored refs pending

A simple, quantitative method to infer the minimum atmospheric height of small exoplanets

David M. Kipping, David S. Spiegel, Dimitar D. Sasselov

arxiv:1306.3221 v2 · 2013-06-13 · astro-ph.EP · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WESP6KIOUNIWYVRS6B2GUGYNJW}

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	2026-05-18T01:49:22.634566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b124ff290ea3516c5632f0746a1b0d4da779fe29e1b5d6a95706ed9e41101d0f

Aliases

arxiv: 1306.3221 · arxiv_version: 1306.3221v2 · doi: 10.48550/arxiv.1306.3221 · pith_short_12: WESP6KIOUNIW · pith_short_16: WESP6KIOUNIWYVRS · pith_short_8: WESP6KIO

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/WESP6KIOUNIWYVRS6B2GUGYNJW \
  | 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: b124ff290ea3516c5632f0746a1b0d4da779fe29e1b5d6a95706ed9e41101d0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d7f9dbdbfc29e4ac4e3527ee015b9ba8d68e02f3f3e75befa3d3e5d3a30ebca",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2013-06-13T20:00:00Z",
    "title_canon_sha256": "7c43d51fdf649fa725e4bbc6db3e9707e8b446551012131ef7b8a3c620253d8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.3221",
    "kind": "arxiv",
    "version": 2
  }
}