Pith Number

pith:PQW3BKXS

pith:2021:PQW3BKXSMQKRDCNB2NKHWUEYSM

not attested not anchored not stored refs pending

Characterizing exoplanetary atmospheres at high resolution with SPIRou: Detection of water on HD 189733 b

Anne Boucher, Antoine Darveau-Bernier, Baptiste Klein, Bj\"orn Benneke, Christophe Lovis, Claire Moutou, David Ehrenreich, David Lafreni\`ere, Eder Martioli, Emily Deibert, Eric Gaidos, \'Etienne Artigau, Guillaume H\'ebrard, Jean-Fran\c{c}ois Donati, Jo\~ao Gomes da Silva, Jonathan Gagn\'e, Jorge H. C. Martins, Luc Arnold, Michael Radica, Neil J. Cook, Nuno C. Santos, Pascal Fouqu\'e, Pedro Figueira, Ray Jayawardhana, Ren\'e Doyon, Romain Allart, Ryan Cloutier, Stefan Pelletier, Thierry Forveille, Vincent Bourrier, Xavier Bonfils, Xavier Delfosse

arxiv:2108.08390 v2 · 2021-08-18 · 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{PQW3BKXSMQKRDCNB2NKHWUEYSM}

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	2026-07-05T03:32:14.843733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c2db0aaf264151189a1d3547b509893396f760d779a7679ea8adce04351e372

Aliases

arxiv: 2108.08390 · arxiv_version: 2108.08390v2 · doi: 10.48550/arxiv.2108.08390 · pith_short_12: PQW3BKXSMQKR · pith_short_16: PQW3BKXSMQKRDCNB · pith_short_8: PQW3BKXS

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/PQW3BKXSMQKRDCNB2NKHWUEYSM \
  | 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: 7c2db0aaf264151189a1d3547b509893396f760d779a7679ea8adce04351e372

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bee1eb3c52aee1f85f31c47b9b1ae5ee30a403ed3104e537f96c45df4f2b417",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-08-18T21:07:30Z",
    "title_canon_sha256": "aba6829464b68be6d0418ca747e7375e89cb29dcafa5ebafe366106a78497541"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.08390",
    "kind": "arxiv",
    "version": 2
  }
}