Pith Number

pith:P4OQAIGS

pith:2018:P4OQAIGS4AZX6W2MNEXCNXSWQH

not attested not anchored not stored refs pending

Biosignature Anisotropy Modeled on Temperate Tidally Locked M-dwarf Planets

Daniel E. Horton, Eric T. Wolf, Howard Chen, Ravi Kopparapu, Shawn Domagal-Goldman

arxiv:1810.12904 v3 · 2018-10-30 · 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{P4OQAIGS4AZX6W2MNEXCNXSWQH}

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	2026-05-17T23:57:30.936423Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f1d0020d2e0337f5b4c692e26de5681f56d760d15b96232eab97e0ad68697ed

Aliases

arxiv: 1810.12904 · arxiv_version: 1810.12904v3 · doi: 10.48550/arxiv.1810.12904 · pith_short_12: P4OQAIGS4AZX · pith_short_16: P4OQAIGS4AZX6W2M · pith_short_8: P4OQAIGS

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/P4OQAIGS4AZX6W2MNEXCNXSWQH \
  | 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: 7f1d0020d2e0337f5b4c692e26de5681f56d760d15b96232eab97e0ad68697ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2091d89da1742607d6a680e6f6d0bc1185445fb5aa8066747b347700526a7d2f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-10-30T17:58:07Z",
    "title_canon_sha256": "daa61f5551fbe64aef7442305d9caf198d566a708e9f3abd431cc9ffe006177a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12904",
    "kind": "arxiv",
    "version": 3
  }
}