Pith Number

pith:556V7JDJ

pith:2012:556V7JDJPNQV5DU6EJE2BKRYCJ

not attested not anchored not stored refs pending

Can planetary instability explain the Kepler dichotomy?

Anders Johansen, Melvyn B. Davies, Ross P. Church, Viktor Holmelin (Lund University)

arxiv:1206.6898 v2 · 2012-06-28 · 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{556V7JDJPNQV5DU6EJE2BKRYCJ}

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	2026-05-18T01:56:36.658160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef7d5fa4697b615e8e9e2249a0aa38125212204c934f45542d2016cddc752d30

Aliases

arxiv: 1206.6898 · arxiv_version: 1206.6898v2 · doi: 10.48550/arxiv.1206.6898 · pith_short_12: 556V7JDJPNQV · pith_short_16: 556V7JDJPNQV5DU6 · pith_short_8: 556V7JDJ

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/556V7JDJPNQV5DU6EJE2BKRYCJ \
  | 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: ef7d5fa4697b615e8e9e2249a0aa38125212204c934f45542d2016cddc752d30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "815812706ff2759c4c5a6dd0d967e1c119b458d7c1a1bc642c5a040e8004dcd7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-06-28T20:31:57Z",
    "title_canon_sha256": "1011f7a47a432d64e27c9cb7fa8696b903cecf6c163c6fe4e3568037f49d879d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.6898",
    "kind": "arxiv",
    "version": 2
  }
}