Pith Number

pith:Z7FOKJVS

pith:2019:Z7FOKJVSIQNS23P75M6AMYYBQK

not attested not anchored not stored refs pending

Discovery of a Compact Companion to a Nearby Star

Elliott P. Horch, Jonathan Horner, Mark E. Everett, Paul A. Dalba, Robert A. Wittenmyer, Stephen R. Kane, Steve B. Howell, Zhexing Li

arxiv:1903.04529 v2 · 2019-03-11 · 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{Z7FOKJVSIQNS23P75M6AMYYBQK}

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	2026-05-17T23:47:57.729050Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfcae526b2441b2d6dffeb3c066301829c436cabea676d5a396cd1e3ebd69ea8

Aliases

arxiv: 1903.04529 · arxiv_version: 1903.04529v2 · doi: 10.48550/arxiv.1903.04529 · pith_short_12: Z7FOKJVSIQNS · pith_short_16: Z7FOKJVSIQNS23P7 · pith_short_8: Z7FOKJVS

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/Z7FOKJVSIQNS23P75M6AMYYBQK \
  | 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: cfcae526b2441b2d6dffeb3c066301829c436cabea676d5a396cd1e3ebd69ea8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64cb5547202118c0d94033f8e02439242fbcedbc37fe1a7742bb75215b77aac8",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-03-11T18:36:05Z",
    "title_canon_sha256": "6717388e6facd92c3cd88a05015e9584ea48e253296e37323ea0ad792a5ee55b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04529",
    "kind": "arxiv",
    "version": 2
  }
}