Pith Number

pith:CP7DFPRW

pith:2024:CP7DFPRWEB7KJ5MBTNX5E25LWM

not attested not anchored not stored refs pending

Distinguishing oceans of water from magma on mini-Neptune K2-18b

Dan J. Bower, Harrison Nicholls, Oliver Shorttle, Sean Jordan, Tim Lichtenberg

arxiv:2401.05864 v3 · 2024-01-11 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CP7DFPRWEB7KJ5MBTNX5E25LWM}

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	2026-07-05T07:47:46.398489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13fe32be36207ea4f5819b6fd26babb32cfff1844fcd846a9b5c73f99ea1c06e

Aliases

arxiv: 2401.05864 · arxiv_version: 2401.05864v3 · doi: 10.48550/arxiv.2401.05864 · pith_short_12: CP7DFPRWEB7K · pith_short_16: CP7DFPRWEB7KJ5MB · pith_short_8: CP7DFPRW

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/CP7DFPRWEB7KJ5MBTNX5E25LWM \
  | 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: 13fe32be36207ea4f5819b6fd26babb32cfff1844fcd846a9b5c73f99ea1c06e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0eb6f199b78f5d8e9788a4c3d4cdadc3b2f8e990a21b5a6b6d8eeee1fc8dfa19",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2024-01-11T12:14:23Z",
    "title_canon_sha256": "7e737374e359ce88e1ce4a51215e8169c72d97e32dfa047214af8623987c4bd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2401.05864",
    "kind": "arxiv",
    "version": 3
  }
}