Pith Number

pith:XH7LBJ3U

pith:2025:XH7LBJ3U3TBIL2EAWFFVDEZBXI

not attested not anchored not stored refs pending

The orbital period of the long-period and colliding-wind binary WR 146 from radio interferometry of the shock cone

Bo Zhang, Helge Todt, Jingdong Zhang, Lang Cui, Pengfei Jiang, Shiming Wen, Shuangjing Xu, Xiaofeng Li, Xiaofeng Mai, Xi Yan, Yan Sun

arxiv:2502.17930 v1 · 2025-02-25 · 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{XH7LBJ3U3TBIL2EAWFFVDEZBXI}

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	2026-07-05T10:19:46.367073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9feb0a774dcc285e880b14b519321ba09546eaedb6d7541c04cedfbaa6fce2b

Aliases

arxiv: 2502.17930 · arxiv_version: 2502.17930v1 · doi: 10.48550/arxiv.2502.17930 · pith_short_12: XH7LBJ3U3TBI · pith_short_16: XH7LBJ3U3TBIL2EA · pith_short_8: XH7LBJ3U

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/XH7LBJ3U3TBIL2EAWFFVDEZBXI \
  | 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: b9feb0a774dcc285e880b14b519321ba09546eaedb6d7541c04cedfbaa6fce2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85be83b82ab31ebae05aa9e621103b18c28d3bc224016713280e69751c577c32",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-02-25T07:48:01Z",
    "title_canon_sha256": "a7bd6a0e17b70f985cb171424a60188e5ff4c1d0859ed70a51ca2aa265dd5fa5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.17930",
    "kind": "arxiv",
    "version": 1
  }
}