Pith Number

pith:C4MCD7PL

pith:2022:C4MCD7PLMTNIFOMHEMKHD3MMJN

not attested not anchored not stored refs pending

Directional aspects of vegetation linear and circular polarization biosignatures

Antoine Pommerol, Brice-Olivier Demory, C.H. Lucas Patty, Jonas G. K\"uhn, Nicolas Thomas

arxiv:2207.08125 v1 · 2022-07-17 · astro-ph.EP · physics.bio-ph · q-bio.BM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C4MCD7PLMTNIFOMHEMKHD3MMJN}

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	2026-07-05T04:51:24.120407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

171821fdeb64da82b987231471ed8c4b70a4b9b98c35124b5a05128d459e5d3a

Aliases

arxiv: 2207.08125 · arxiv_version: 2207.08125v1 · doi: 10.48550/arxiv.2207.08125 · pith_short_12: C4MCD7PLMTNI · pith_short_16: C4MCD7PLMTNIFOMH · pith_short_8: C4MCD7PL

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/C4MCD7PLMTNIFOMHEMKHD3MMJN \
  | 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: 171821fdeb64da82b987231471ed8c4b70a4b9b98c35124b5a05128d459e5d3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9e19fd8086ca70c73bd560e84bfa8cf0281d5c6b9716d387e9c73ca8840b849",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "q-bio.BM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2022-07-17T09:50:31Z",
    "title_canon_sha256": "4266ccf99562c153cc2b183924cb99b9c7cb0556019fbdd4e72a789c5105bc8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.08125",
    "kind": "arxiv",
    "version": 1
  }
}