Pith Number

pith:VGEOG6ND

pith:2013:VGEOG6NDO2EUGLEOM7ID6YBBJP

not attested not anchored not stored refs pending

On the frequency of planetary systems around G-dwarfs

Richard J. Parker, Sascha P. Quanz (ETH Zurich, Switzerland)

arxiv:1308.6279 v1 · 2013-08-28 · astro-ph.EP · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VGEOG6NDO2EUGLEOM7ID6YBBJP}

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	2026-05-18T01:47:57.235259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a988e379a37689432c8e67d03f60214bd4f6870cfb9b1c7e3c389948451065d6

Aliases

arxiv: 1308.6279 · arxiv_version: 1308.6279v1 · doi: 10.48550/arxiv.1308.6279 · pith_short_12: VGEOG6NDO2EU · pith_short_16: VGEOG6NDO2EUGLEO · pith_short_8: VGEOG6ND

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/VGEOG6NDO2EUGLEOM7ID6YBBJP \
  | 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: a988e379a37689432c8e67d03f60214bd4f6870cfb9b1c7e3c389948451065d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73ad7d38f57c0d803a6b98e1e9b6500f04709d0e9f5ff388d13fc7958fc9ec1e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2013-08-28T20:00:00Z",
    "title_canon_sha256": "919b5738d8f1c9369becc4b94ceafaad9c05845af72f2fc31460c779ba27b170"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.6279",
    "kind": "arxiv",
    "version": 1
  }
}