Pith Number

pith:HDSEIXDP

pith:2018:HDSEIXDPQJV2W53APPEWB2RS26

not attested not anchored not stored refs pending

Atmospheric Seasonality as an Exoplanet Biosignature

Andy Ridgwell, Christopher T. Reinhard, Edward W. Schwieterman, Stephanie L. Olson, Stephen R. Kane, Timothy W. Lyons, Victoria S. Meadows

arxiv:1806.04592 v1 · 2018-06-12 · 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{HDSEIXDPQJV2W53APPEWB2RS26}

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	2026-05-18T00:13:33.287486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38e4445c6f826bab77607bc960ea32d7a7692c0a8daf5a8b102e8c7c9c896437

Aliases

arxiv: 1806.04592 · arxiv_version: 1806.04592v1 · doi: 10.48550/arxiv.1806.04592 · pith_short_12: HDSEIXDPQJV2 · pith_short_16: HDSEIXDPQJV2W53A · pith_short_8: HDSEIXDP

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/HDSEIXDPQJV2W53APPEWB2RS26 \
  | 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: 38e4445c6f826bab77607bc960ea32d7a7692c0a8daf5a8b102e8c7c9c896437

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be1ddc376db8e8a631f9fb587bb3c687c5049f1a058828fff109e503b1907d17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-06-12T15:11:35Z",
    "title_canon_sha256": "79b7ebf4e36cd53b9c1d4a2f644019d3b04aa47804cfe691ca424aba88344d4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.04592",
    "kind": "arxiv",
    "version": 1
  }
}