Pith Number

pith:DVNFV4BM

pith:2002:DVNFV4BMDAHQM4FIS4RVAOE5QF

not attested not anchored not stored refs pending

On the Origin of Early Superhumps in WZ Sge-Type Stars

T. Kato (Kyoto U)

arxiv:astro-ph/0201233 v1 · 2002-01-15 · 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{DVNFV4BMDAHQM4FIS4RVAOE5QF}

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	2026-05-18T01:40:43.356725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d5a5af02c180f0670a8972350389d817a8691d980de22c9725ceb8b93b7ebbb

Aliases

arxiv: astro-ph/0201233 · arxiv_version: astro-ph/0201233v1 · doi: 10.48550/arxiv.astro-ph/0201233 · pith_short_12: DVNFV4BMDAHQ · pith_short_16: DVNFV4BMDAHQM4FI · pith_short_8: DVNFV4BM

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/DVNFV4BMDAHQM4FIS4RVAOE5QF \
  | 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: 1d5a5af02c180f0670a8972350389d817a8691d980de22c9725ceb8b93b7ebbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d603a3a3ea2cb691299a7f6efb18108ec6b48a3d7b93343d390a7fd8479c4311",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-01-15T08:07:30Z",
    "title_canon_sha256": "6224a6795439e7bec6c0e1c0d6c73afd40ee696a71456304731e3e4c426e0ac3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0201233",
    "kind": "arxiv",
    "version": 1
  }
}