Pith Number

pith:P7OI4QIO

pith:2013:P7OI4QIOSY6GABJTJBBABIEEZG

not attested not anchored not stored refs pending

A revised estimate of the occurrence rate of terrestrial planets in the habitable zones around kepler m-dwarfs

Ravi Kumar Kopparapu

arxiv:1303.2649 v1 · 2013-03-11 · 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{P7OI4QIOSY6GABJTJBBABIEEZG}

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.

Cited by

1 paper in Pith

The Barnard's Star Planetary System: Stability, Composition, and Evolution of Four Sub-Earth Exoplanets

Receipt and verification

First computed	2026-05-18T01:51:08.685016Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7fdc8e410e963c600533484200a084c99cebdf5e70f038dcae5d5c4c071df512

Aliases

arxiv: 1303.2649 · arxiv_version: 1303.2649v1 · doi: 10.48550/arxiv.1303.2649 · pith_short_12: P7OI4QIOSY6G · pith_short_16: P7OI4QIOSY6GABJT · pith_short_8: P7OI4QIO

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/P7OI4QIOSY6GABJTJBBABIEEZG \
  | 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: 7fdc8e410e963c600533484200a084c99cebdf5e70f038dcae5d5c4c071df512

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21a7d4ebf21a4698aa9a70fc451c507dddcfb26fdfe24562dd758b5e15781889",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2013-03-11T19:58:03Z",
    "title_canon_sha256": "f38c67ce2ec9ba5c26f6e72c3ab3e6cdbdc4e61b7b116cdbff29ad40c1b84920"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.2649",
    "kind": "arxiv",
    "version": 1
  }
}