Pith Number

pith:C6LGRFL7

pith:2021:C6LGRFL7ABDFD6KUGUM3YL4DQN

not attested not anchored not stored refs pending

Assessment of Isoprene as a Possible Biosignature Gas in Exoplanets with Anoxic Atmospheres

Clara Sousa-Silva, Janusz Jurand Petkowski, Jingcheng Huang, Sara Seager, Sukrit Ranjan, William Bains, Zhuchang Zhan

arxiv:2103.14228 v1 · 2021-03-26 · astro-ph.EP · physics.chem-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{C6LGRFL7ABDFD6KUGUM3YL4DQN}

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	2026-07-05T02:30:15.538154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

179668957f004651f9543519bc2f83834a337ccedb7a2834cf83fe4023fb15d1

Aliases

arxiv: 2103.14228 · arxiv_version: 2103.14228v1 · doi: 10.48550/arxiv.2103.14228 · pith_short_12: C6LGRFL7ABDF · pith_short_16: C6LGRFL7ABDFD6KU · pith_short_8: C6LGRFL7

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/C6LGRFL7ABDFD6KUGUM3YL4DQN \
  | 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: 179668957f004651f9543519bc2f83834a337ccedb7a2834cf83fe4023fb15d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c366fca5a342a6941f8b4cba994faced0dab4d87db2677071e2ca8eec736c9c",
    "cross_cats_sorted": [
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-03-26T02:38:36Z",
    "title_canon_sha256": "b479febdd18a35ac0489df9cdc045c4f40843d25972b31ca2f001a92abbc39e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.14228",
    "kind": "arxiv",
    "version": 1
  }
}