Pith Number

pith:HBFNNDJE

pith:2019:HBFNNDJE26OGGZ5WFFGSWUNYJS

not attested not anchored not stored refs pending

Kepler-411: a four-planet system with an active host star

J. H. M. M. Schmitt, Leilei Sun, M.B.N. Kouwenhoven, P. Ioannidis, Shenghong Gu, Xiaobin Wang

arxiv:1902.09719 v1 · 2019-02-26 · 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{HBFNNDJE26OGGZ5WFFGSWUNYJS}

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	2026-05-17T23:49:38.804860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

384ad68d24d79c6367b6294d2b51b84c9d070b17213ab5e48a7b9fda2932c9c7

Aliases

arxiv: 1902.09719 · arxiv_version: 1902.09719v1 · doi: 10.48550/arxiv.1902.09719 · pith_short_12: HBFNNDJE26OG · pith_short_16: HBFNNDJE26OGGZ5W · pith_short_8: HBFNNDJE

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/HBFNNDJE26OGGZ5WFFGSWUNYJS \
  | 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: 384ad68d24d79c6367b6294d2b51b84c9d070b17213ab5e48a7b9fda2932c9c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7397341019353135be825d99c5cbb17c81435e4628b36c2464c228541cd3ddb5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-02-26T03:51:33Z",
    "title_canon_sha256": "6093d4a668cf16939095a180cdc908cb4a2cce756c21a0559d5b08153327c3b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09719",
    "kind": "arxiv",
    "version": 1
  }
}