Pith Number

pith:ZMFKDNWF

pith:2006:ZMFKDNWF5YWTA7CBEQD5XSDYUH

not attested not anchored not stored refs pending

Diffuse, Non-Thermal X-ray Emission from the Galactic Star Cluster Westerlund 1

Casey Law, Farhad Yusef-Zadeh, J. Simon Clark, Michael P. Muno, Richard de Grijs, Sean M. Dougherty, Simon Portegies Zwart

arxiv:astro-ph/0606492 v1 · 2006-06-20 · 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{ZMFKDNWF5YWTA7CBEQD5XSDYUH}

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	2026-07-04T15:19:05.680672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb0aa1b6c5ee2d307c412407dbc878a1c6e3744bbbd53d198990221d2b2e0ea0

Aliases

arxiv: astro-ph/0606492 · arxiv_version: astro-ph/0606492v1 · doi: 10.48550/arxiv.astro-ph/0606492 · pith_short_12: ZMFKDNWF5YWT · pith_short_16: ZMFKDNWF5YWTA7CB · pith_short_8: ZMFKDNWF

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/ZMFKDNWF5YWTA7CBEQD5XSDYUH \
  | 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: cb0aa1b6c5ee2d307c412407dbc878a1c6e3744bbbd53d198990221d2b2e0ea0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ede703eb8eb199ad3f25b86a66eccd9afa0ec41d55ee9656b2ef43acf2c42db",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-06-20T18:47:01Z",
    "title_canon_sha256": "73c89e8350152c60f6d013b2fd4542902049f14c20528ca119ca74e61b0bb263"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0606492",
    "kind": "arxiv",
    "version": 1
  }
}