Pith Number

pith:ED5URZGM

pith:2009:ED5URZGMF7S55QYUXIANUD5E7I

not attested not anchored not stored refs pending

A self-consistent empirical model atmosphere, abundance and stratification analysis of the benchmark roAp star alpha Circini

D. Shulyak, O. Kochukhov, T. Ryabchikova

arxiv:0903.3512 v1 · 2009-03-20 · 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{ED5URZGMF7S55QYUXIANUD5E7I}

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	2026-05-18T02:14:27.037505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20fb48e4cc2fe5dec314ba00da0fa4fa27f18967cad74042d2a81db44b4ba2c9

Aliases

arxiv: 0903.3512 · arxiv_version: 0903.3512v1 · doi: 10.48550/arxiv.0903.3512 · pith_short_12: ED5URZGMF7S5 · pith_short_16: ED5URZGMF7S55QYU · pith_short_8: ED5URZGM

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/ED5URZGMF7S55QYUXIANUD5E7I \
  | 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: 20fb48e4cc2fe5dec314ba00da0fa4fa27f18967cad74042d2a81db44b4ba2c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "117f69c094b0dba45606baccd7adfbc7fdbac2d6b8d47857ecdd0a2500693af1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-03-20T13:03:02Z",
    "title_canon_sha256": "c23e69ab1bb728831efd03a8062ffe6e84bdaab1f45e6f8b2581a1fe097492cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3512",
    "kind": "arxiv",
    "version": 1
  }
}