Pith Number

pith:QD4HBZI2

pith:2021:QD4HBZI227ZYEV7DQDHFB7MP63

not attested not anchored not stored refs pending

Kepler-167e as a Probe of the Formation Histories of Cold Giants with Inner Super-Earths

Andrew W. Howard, Benjamin J. Fulton, Charles Beichman, Daniel Thorngren, David R. Ciardi, Heather A. Knutson, Judah Van Zandt, Paul A. Dalba, Yayaati Chachan

arxiv:2112.00747 v1 · 2021-12-01 · 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{QD4HBZI227ZYEV7DQDHFB7MP63}

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	2026-07-05T03:56:17.278848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80f870e51ad7f38257e380ce50fd8ff6eacdc7f36f6ba8aeab34440aac2a50ad

Aliases

arxiv: 2112.00747 · arxiv_version: 2112.00747v1 · doi: 10.48550/arxiv.2112.00747 · pith_short_12: QD4HBZI227ZY · pith_short_16: QD4HBZI227ZYEV7D · pith_short_8: QD4HBZI2

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/QD4HBZI227ZYEV7DQDHFB7MP63 \
  | 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: 80f870e51ad7f38257e380ce50fd8ff6eacdc7f36f6ba8aeab34440aac2a50ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ea89a6c6984939f9d8dcf426c14ea84510b54ecc469f5eebc32e3ee6a711078",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-12-01T19:00:01Z",
    "title_canon_sha256": "f72b2dca68b773bba50f4a7b0b02b37e481e69f6909ace65ab897eb6b08553c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.00747",
    "kind": "arxiv",
    "version": 1
  }
}