Pith Number

pith:VPNUZB3J

pith:2017:VPNUZB3JH675INDS6BLZ452YIU

not attested not anchored not stored refs pending

Know the Planet, Know the Star: Precise Stellar Densities from Kepler Transit Light Curves

David Kipping, Emily Sandford

arxiv:1710.07293 v2 · 2017-10-19 · astro-ph.EP · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VPNUZB3JH675INDS6BLZ452YIU}

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	2026-05-18T00:29:27.848064Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abdb4c87693fbfd43472f0579e7758450688316e78cd868b0e4347f7ab33fe2a

Aliases

arxiv: 1710.07293 · arxiv_version: 1710.07293v2 · doi: 10.48550/arxiv.1710.07293 · pith_short_12: VPNUZB3JH675 · pith_short_16: VPNUZB3JH675INDS · pith_short_8: VPNUZB3J

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/VPNUZB3JH675INDS6BLZ452YIU \
  | 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: abdb4c87693fbfd43472f0579e7758450688316e78cd868b0e4347f7ab33fe2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4164d684bff67d1a06b6a202864b973392d11326669ae24718b8ec8cacc4b7d1",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-10-19T18:00:03Z",
    "title_canon_sha256": "de8e880c05c5956df2b17030f7f4949066cd88063c342a39d2c7f057d58e31c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.07293",
    "kind": "arxiv",
    "version": 2
  }
}