Pith Number

pith:2R7QVNT6

pith:2018:2R7QVNT6XYVAYSLQ5J4Z6KGK4J

not attested not anchored not stored refs pending

A machine learns to predict the stability of circumbinary planets

Christopher Lam, David Kipping

arxiv:1801.03955 v4 · 2018-01-11 · 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{2R7QVNT6XYVAYSLQ5J4Z6KGK4J}

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	2026-05-18T00:24:02.251386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d47f0ab67ebe2a0c4970ea799f28cae26e76fc36c8239b244d3e2d93213f4a48

Aliases

arxiv: 1801.03955 · arxiv_version: 1801.03955v4 · doi: 10.48550/arxiv.1801.03955 · pith_short_12: 2R7QVNT6XYVA · pith_short_16: 2R7QVNT6XYVAYSLQ · pith_short_8: 2R7QVNT6

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/2R7QVNT6XYVAYSLQ5J4Z6KGK4J \
  | 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: d47f0ab67ebe2a0c4970ea799f28cae26e76fc36c8239b244d3e2d93213f4a48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d8452b9f421677e2254735562c64511ba9c2834e283fcbd111f1167bdfcd06e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-01-11T19:09:09Z",
    "title_canon_sha256": "9ea3f4168efbe081f29d2ad7b6044a5fde5d0a51fde316263c94ae64441996ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.03955",
    "kind": "arxiv",
    "version": 4
  }
}