Pith Number

pith:WKNXN2TV

pith:2002:WKNXN2TVOKORYEW5RBEUZUKFQL

not attested not anchored not stored refs pending

The Origin of Subdwarf B Star (I): the Formation Channels

Natasha Ivanova, Philipp Podsiadlowski, Pierre L.F. Maxted, Tom R. Marsh, Zhanwen Han

arxiv:astro-ph/0206130 v1 · 2002-06-09 · 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{WKNXN2TVOKORYEW5RBEUZUKFQL}

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.

Cited by

1 paper in Pith

Selected Results on Variable Stars Observed by TESS

Receipt and verification

First computed	2026-07-04T16:30:10.033046Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b29b76ea75729d1c12dd88494cd14582d1f4fce3648d1c286640adbaeaeaf803

Aliases

arxiv: astro-ph/0206130 · arxiv_version: astro-ph/0206130v1 · doi: 10.48550/arxiv.astro-ph/0206130 · pith_short_12: WKNXN2TVOKOR · pith_short_16: WKNXN2TVOKORYEW5 · pith_short_8: WKNXN2TV

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/WKNXN2TVOKORYEW5RBEUZUKFQL \
  | 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: b29b76ea75729d1c12dd88494cd14582d1f4fce3648d1c286640adbaeaeaf803

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99e03db1dffded7703c0139b4235cbfcecce053fd2a101facf1a7b37e1107ceb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-06-09T03:35:17Z",
    "title_canon_sha256": "b7662df8cb906f564f3370363a9de73bd57f99db92992656bb9a416f390c5ff7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0206130",
    "kind": "arxiv",
    "version": 1
  }
}