Pith Number

pith:TWQ3VRKS

pith:2021:TWQ3VRKSIZBAOTC2C3A2OEET35

not attested not anchored not stored refs pending

Where is the Water? Jupiter-like C/H ratio but strong H$_2$O depletion found on $\tau$ Bo\"otis b using SPIRou

Anne Boucher, Antoine Darveau-Bernier, Bj\"orn Benneke, Caroline Piaulet, Charles Cadieux, Claire Moutou, David Lafreni\`ere, Eder Martioli, \'Etienne Artigau, Guillaume H\'ebrard, Jean-Fran\c{c}ois Donati, Jorge H. C. Martins, Louis-Philippe Coulombe, Neil J. Cook, Pascal Fouqu\'e, Ren\'e Doyon, Romain Allart, Simon Delisle, Stefan Pelletier, Thomas Vandal, Xavier Delfosse

arxiv:2105.10513 v2 · 2021-05-21 · 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{TWQ3VRKSIZBAOTC2C3A2OEET35}

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	2026-07-05T03:08:46.003508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9da1bac5524642074c5a16c1a71093df69712ac1c991d551b8987119c5eff3e1

Aliases

arxiv: 2105.10513 · arxiv_version: 2105.10513v2 · doi: 10.48550/arxiv.2105.10513 · pith_short_12: TWQ3VRKSIZBA · pith_short_16: TWQ3VRKSIZBAOTC2 · pith_short_8: TWQ3VRKS

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/TWQ3VRKSIZBAOTC2C3A2OEET35 \
  | 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: 9da1bac5524642074c5a16c1a71093df69712ac1c991d551b8987119c5eff3e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e64d5680165dd8a7966374443732363e45752f3890dd87870babf5acef3123d8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-05-21T18:00:06Z",
    "title_canon_sha256": "4fd5495c8fe4d4431c5b5f2dbf615bbf3cefc7a25ad553ab358e86148af1404d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.10513",
    "kind": "arxiv",
    "version": 2
  }
}