Pith Number

pith:YGOZ7FGD

pith:2021:YGOZ7FGDFLC3KYILO2BZJX3JAI

not attested not anchored not stored refs pending

How to identify exoplanet surfaces using atmospheric trace species in hydrogen-dominated atmospheres

Jonathan J. Fortney, Julianne I. Moses, Xinting Yu, Xi Zhang

arxiv:2104.09843 v2 · 2021-04-20 · 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{YGOZ7FGDFLC3KYILO2BZJX3JAI}

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	2026-07-05T02:51:24.317152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c19d9f94c32ac5b5610b768394df6902058e8acfd657d3ead4bb663a73adbefa

Aliases

arxiv: 2104.09843 · arxiv_version: 2104.09843v2 · doi: 10.48550/arxiv.2104.09843 · pith_short_12: YGOZ7FGDFLC3 · pith_short_16: YGOZ7FGDFLC3KYIL · pith_short_8: YGOZ7FGD

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/YGOZ7FGDFLC3KYILO2BZJX3JAI \
  | 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: c19d9f94c32ac5b5610b768394df6902058e8acfd657d3ead4bb663a73adbefa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6024e349715fa9176ffc652464f3291fef48002a1d72f4c83778566fff307f4b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-04-20T09:12:48Z",
    "title_canon_sha256": "5de365ce1beae7257092b8c16491fbc9cffcbb389f3001749410601bd8d0c7e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.09843",
    "kind": "arxiv",
    "version": 2
  }
}