Pith Number

pith:ZY2ZGI4E

pith:2018:ZY2ZGI4ERELXR46VBBBBVUSHMR

not attested not anchored not stored refs pending

H- Opacity and Water Dissociation in the Dayside Atmosphere of the Very Hot Gas Giant WASP-18 b

Adam P. Showman, Jacob Arcangeli, Jacob L. Bean, Jean-Michel Desert, Jonathan J. Fortney, Kevin B. Stevenson, Laura Kreidberg, Megan Mansfield, Michael R. Line, Vivien Parmentier

arxiv:1801.02489 v3 · 2018-01-08 · 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{ZY2ZGI4ERELXR46VBBBBVUSHMR}

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	2026-05-18T00:17:32.934560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce35932384891778f3d508421ad247647b8449cfa1b4dd13972ad9bfbcd99cfa

Aliases

arxiv: 1801.02489 · arxiv_version: 1801.02489v3 · doi: 10.48550/arxiv.1801.02489 · pith_short_12: ZY2ZGI4ERELX · pith_short_16: ZY2ZGI4ERELXR46V · pith_short_8: ZY2ZGI4E

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/ZY2ZGI4ERELXR46VBBBBVUSHMR \
  | 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: ce35932384891778f3d508421ad247647b8449cfa1b4dd13972ad9bfbcd99cfa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fd60068d7253bb2d18c312adb2ba4a5f0aba5f7780bdf9c20118cb1ba047db8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-01-08T15:20:09Z",
    "title_canon_sha256": "46b69284afe3a01657eae17b910744edd05ef087effb9227b53d76d2757a7451"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02489",
    "kind": "arxiv",
    "version": 3
  }
}