Pith Number

pith:4IP7XVZ3

pith:2015:4IP7XVZ3FJXFRRL4EVKIS2G6WO

not attested not anchored not stored refs pending

Know the Star, Know the Planet. III. Discovery of Late-Type Companions to Two Exoplanet Host Stars

Andrei Tokovinin, Brian D. Mason, Christoph Baranec, Jr., Lewis C. Roberts, Nicholas M. Law, Reed L. Riddle, William I. Hartkopf

arxiv:1503.01211 v1 · 2015-03-04 · astro-ph.SR · 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{4IP7XVZ3FJXFRRL4EVKIS2G6WO}

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	2026-05-18T01:40:53.504565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e21ffbd73b2a6e58c57c25548968deb3b5525a7e117f8ccd2d543e1b2fd9e1ba

Aliases

arxiv: 1503.01211 · arxiv_version: 1503.01211v1 · doi: 10.48550/arxiv.1503.01211 · pith_short_12: 4IP7XVZ3FJXF · pith_short_16: 4IP7XVZ3FJXFRRL4 · pith_short_8: 4IP7XVZ3

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/4IP7XVZ3FJXFRRL4EVKIS2G6WO \
  | 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: e21ffbd73b2a6e58c57c25548968deb3b5525a7e117f8ccd2d543e1b2fd9e1ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "563d35fdf4593b8b45988c8e971ee32b6f489e7d85dd19a999331da91ad64312",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-03-04T04:04:13Z",
    "title_canon_sha256": "b2d7abdf2d28a330a153f86c219e5bc460703a1e0fbd9738a0eedba4c087bf47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.01211",
    "kind": "arxiv",
    "version": 1
  }
}