Pith Number

pith:KDY4VBNH

pith:2009:KDY4VBNHS4TBCMHKECDFDQTYXT

not attested not anchored not stored refs pending

Asteroseismic analysis of the roAp star alpha Circini: 84 days of high-precision photometry from the WIRE satellite

D. L. Buzasi, D. Mashigo, D. W. Kurtz, F. van Wyk, G. Handler, H. Bruntt, I. M. Brandao, I. Zhang, M. S. Cunha, T. Medupe, T. R. Bedding

arxiv:0903.3967 v1 · 2009-03-23 · 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{KDY4VBNHS4TBCMHKECDFDQTYXT}

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	2026-05-18T02:14:26.374637Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50f1ca85a797261130ea208651c278bcfefaa6d686db0e2af43d15025bd2e006

Aliases

arxiv: 0903.3967 · arxiv_version: 0903.3967v1 · doi: 10.48550/arxiv.0903.3967 · pith_short_12: KDY4VBNHS4TB · pith_short_16: KDY4VBNHS4TBCMHK · pith_short_8: KDY4VBNH

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/KDY4VBNHS4TBCMHKECDFDQTYXT \
  | 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: 50f1ca85a797261130ea208651c278bcfefaa6d686db0e2af43d15025bd2e006

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "911b653c232d1089f12d334e04b4a4e31138a3b632422c624869ad90e980e8e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-03-23T22:13:35Z",
    "title_canon_sha256": "80fe7146efffb372b61aac835cb6306af7d4c821d0a7d06e6483e099edf28974"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3967",
    "kind": "arxiv",
    "version": 1
  }
}