Pith Number

pith:3NXQTULI

pith:2021:3NXQTULITKA3WM4FUJW3E4RBLM

not attested not anchored not stored refs pending

A backward-spinning star with two coplanar planets

Bun'ei Sato, Emil Knudstrup, J. J. Zanazzi, Joshua N. Winn, Maria Hjorth, Rebekah I. Dawson, Simon Albrecht, Teruyuki Hirano

arxiv:2102.07677 v1 · 2021-02-15 · 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{3NXQTULITKA3WM4FUJW3E4RBLM}

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	2026-07-05T02:15:18.894439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db6f09d1689a81bb3385a26db272215b25bfd6c3d5d415de965157f86ecb8c93

Aliases

arxiv: 2102.07677 · arxiv_version: 2102.07677v1 · doi: 10.48550/arxiv.2102.07677 · pith_short_12: 3NXQTULITKA3 · pith_short_16: 3NXQTULITKA3WM4F · pith_short_8: 3NXQTULI

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/3NXQTULITKA3WM4FUJW3E4RBLM \
  | 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: db6f09d1689a81bb3385a26db272215b25bfd6c3d5d415de965157f86ecb8c93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ced013488177b00bd339c9d5f2081f23c538799c409633cb86252876a8e097c8",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-02-15T17:10:09Z",
    "title_canon_sha256": "4842cc227396551473082b6f2295bdcf9ca9ea2d0c2a9f4ba9ea927c5e6878c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.07677",
    "kind": "arxiv",
    "version": 1
  }
}