Pith Number

pith:QQL57TDH

pith:2007:QQL57TDHX3FZDKEBLI3DSW54OG

not attested not anchored not stored refs pending

Biomarker Response to Galactic Cosmic Ray-Induced NOx and the Methane Greenhouse Effect in the Atmosphere of an Earthlike Planet Orbiting an M-Dwarf Star

Anja Stadelmann, Antigona Segura, Barbara Stracke, Beate Patzer, Heike Rauer, Jean-Mathias Griessmeier, John Lee Grenfell, Philip von Paris, Ruth Titz

arxiv:astro-ph/0702622 v1 · 2007-02-23 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQL57TDHX3FZDKEBLI3DSW54OG}

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	2026-07-04T17:07:42.213994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8417dfcc67becb91a8815a36395bbc71a107327dbd3ba9a00f8e36dfe14d6eef

Aliases

arxiv: astro-ph/0702622 · arxiv_version: astro-ph/0702622v1 · doi: 10.48550/arxiv.astro-ph/0702622 · pith_short_12: QQL57TDHX3FZ · pith_short_16: QQL57TDHX3FZDKEB · pith_short_8: QQL57TDH

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/QQL57TDHX3FZDKEBLI3DSW54OG \
  | 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: 8417dfcc67becb91a8815a36395bbc71a107327dbd3ba9a00f8e36dfe14d6eef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1e17b876588762dfcffdb005c12bb5510f8035f7ef0e4933d1bf9fcaf7a1a3a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-02-23T10:37:09Z",
    "title_canon_sha256": "23366c2e9a164bceab224a87a73dbc7acb87f0470c6d490f346a1391061a0d8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0702622",
    "kind": "arxiv",
    "version": 1
  }
}