Pith Number

pith:RZYWHWHW

pith:2009:RZYWHWHWEJMNV3ZZFGT63MYMPO

not attested not anchored not stored refs pending

Disk Loss and Disk Renewal Phases in Classical Be Stars I: Analysis of Long-Term Spectropolarimetric Data

(2) University of Toledo, (3) University of Wisconsin), Adam F. Kowalski (1) ((1) University of Washington, John P. Wisniewski (1), Jon E. Bjorkman (2), Karen S. Bjorkman (2), Marilyn R. Meade (3), Zachary H. Draper (1)

arxiv:0912.1504 v1 · 2009-12-08 · 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{RZYWHWHWEJMNV3ZZFGT63MYMPO}

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	2026-05-18T02:33:57.191897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e7163d8f62258daef3929a7edb30c7b8efe33e50bed6cfc0d3c4335e0ac6871

Aliases

arxiv: 0912.1504 · arxiv_version: 0912.1504v1 · doi: 10.48550/arxiv.0912.1504 · pith_short_12: RZYWHWHWEJMN · pith_short_16: RZYWHWHWEJMNV3ZZ · pith_short_8: RZYWHWHW

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/RZYWHWHWEJMNV3ZZFGT63MYMPO \
  | 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: 8e7163d8f62258daef3929a7edb30c7b8efe33e50bed6cfc0d3c4335e0ac6871

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "107b2e7daaaec69f2be7819a46aed072805dd0801f1fd8e35a85d657216044f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-08T20:38:01Z",
    "title_canon_sha256": "4b1872d10fbfcb3f5ccd93d7ad0d8b6ac2d6135e092e638fd04f55a1b49c7bbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1504",
    "kind": "arxiv",
    "version": 1
  }
}