Pith Number

pith:WDMIYD7U

pith:2018:WDMIYD7UFNDOENKEHOIWIDVNTD

not attested not anchored not stored refs pending

Observability of hydrogen-rich exospheres in Earth-like exoplanets

David Ehrenreich, Leonardo A. dos Santos, Shingo Kameda, Vincent Bourrier

arxiv:1812.02145 v1 · 2018-12-05 · 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{WDMIYD7UFNDOENKEHOIWIDVNTD}

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	2026-05-17T23:55:10.754394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0d88c0ff42b46e235443b91640ead98e13ecf74192ab40cbf069bac2e0e42ec

Aliases

arxiv: 1812.02145 · arxiv_version: 1812.02145v1 · doi: 10.48550/arxiv.1812.02145 · pith_short_12: WDMIYD7UFNDO · pith_short_16: WDMIYD7UFNDOENKE · pith_short_8: WDMIYD7U

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/WDMIYD7UFNDOENKEHOIWIDVNTD \
  | 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: b0d88c0ff42b46e235443b91640ead98e13ecf74192ab40cbf069bac2e0e42ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d118e6383dce4043c5bc3c3ffcc9a49e17d4cedfe941a1ca683c2ab792601457",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-12-05T18:09:58Z",
    "title_canon_sha256": "6b3772ad8f8703ecaf860de2354441abbfe3ef7ce19e7bd44c06a11d53df7ea5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.02145",
    "kind": "arxiv",
    "version": 1
  }
}