Pith Number

pith:WCGAV3UY

pith:2002:WCGAV3UYKFL2A5DMHOEPRUPBKH

not attested not anchored not stored refs pending

Proper motions of new dust in the colliding-wind binary WR 140

(2) Sydney University, (3) NASA-GSFC), J. D. Monnier (1), P. G. Tuthill (2), W. C. Danchi (3) ((1) Harvard-Smithsonian Center for Astrophysics

arxiv:astro-ph/0202315 v1 · 2002-02-16 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WCGAV3UYKFL2A5DMHOEPRUPBKH}

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	2026-07-04T16:29:25.192747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b08c0aee985157a0746c3b88f8d1e151c51e52c8650595ff1542256d5cd401f9

Aliases

arxiv: astro-ph/0202315 · arxiv_version: astro-ph/0202315v1 · doi: 10.48550/arxiv.astro-ph/0202315 · pith_short_12: WCGAV3UYKFL2 · pith_short_16: WCGAV3UYKFL2A5DM · pith_short_8: WCGAV3UY

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/WCGAV3UYKFL2A5DMHOEPRUPBKH \
  | 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: b08c0aee985157a0746c3b88f8d1e151c51e52c8650595ff1542256d5cd401f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40d97db4d50bd756c4eae96d3dce16ff0e28a2f9bbf48ce1ac6a2b51d68e0cba",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-02-16T20:54:44Z",
    "title_canon_sha256": "abe02f381e889e9eed221ab7c87b98a900f41b435c9410e5a5b0718ffdb9e31e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0202315",
    "kind": "arxiv",
    "version": 1
  }
}