Pith Number

pith:URQ72MYK

pith:2009:URQ72MYKQKGJ53FIXY55W24IX4

not attested not anchored not stored refs pending

Cyclic Variability of the Circumstellar Disc of the Be Star $\zeta$ Tau. II. Testing the 2D Global Disc Oscillation Model

A. C. Carciofi, A. T. Okazaki, C. A. Hummel, D. Baade, J-B. le Bouquin, J. E. Bjorkman, S. \v{S}tefl, Th. Rivinius

arxiv:0901.1098 v1 · 2009-01-08 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{URQ72MYKQKGJ53FIXY55W24IX4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:15:02.897378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a461fd330a828c9eeca8be3bdb6b88bf174f9c76c420bb9b743174a5b912ce15

Aliases

arxiv: 0901.1098 · arxiv_version: 0901.1098v1 · doi: 10.48550/arxiv.0901.1098 · pith_short_12: URQ72MYKQKGJ · pith_short_16: URQ72MYKQKGJ53FI · pith_short_8: URQ72MYK

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/URQ72MYKQKGJ53FIXY55W24IX4 \
  | 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: a461fd330a828c9eeca8be3bdb6b88bf174f9c76c420bb9b743174a5b912ce15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0f9ae0bbf02c4a4dcea1d23c21793eb0507dd23dce66f25198ed4111ab1ee70",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-01-08T17:40:22Z",
    "title_canon_sha256": "7ac8b565a4bc9123b4ff43a9d954c4440b98d3fc6d1a4ff89d943e01740ce908"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1098",
    "kind": "arxiv",
    "version": 1
  }
}