Pith Number

pith:VKE57LAC

pith:2013:VKE57LACIK6SPEM3XNZDGTXAIM

not attested not anchored not stored refs pending

Main-sequence progenitor configurations of the NN Ser candidate circumbinary planetary system are dynamically unstable

Alexander J Mustill, Dimitri Veras, Eva Villaver, Jonathan Horner, Jonathan P Marshall, Philip J Davis, Robert A Wittenmyer

arxiv:1309.3881 v1 · 2013-09-16 · 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{VKE57LACIK6SPEM3XNZDGTXAIM}

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	2026-05-18T01:47:41.584815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa89dfac0242bd27919bbb72334ee0433927d855d8a8121355394ada64843f8f

Aliases

arxiv: 1309.3881 · arxiv_version: 1309.3881v1 · doi: 10.48550/arxiv.1309.3881 · pith_short_12: VKE57LACIK6S · pith_short_16: VKE57LACIK6SPEM3 · pith_short_8: VKE57LAC

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/VKE57LACIK6SPEM3XNZDGTXAIM \
  | 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: aa89dfac0242bd27919bbb72334ee0433927d855d8a8121355394ada64843f8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75f1998befb636e7411a3506ccde0cd8ab37560c7ec49360171c0fe6461c9dc9",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2013-09-16T09:49:32Z",
    "title_canon_sha256": "4e673f86dc075c850cd93e03a73c4c559f4fb8d99e4b567b8c2274cdc2941b4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.3881",
    "kind": "arxiv",
    "version": 1
  }
}