Pith Number

pith:ZW2WG6ML

pith:2009:ZW2WG6MLEZTSPMWSU3DXE2QBGY

not attested not anchored not stored refs pending

X-ray emission characteristics of two WR binaries : V444 Cyg and CD Cru

Brijesh Kumar, Himali Bhatt, J. C. Pandey, K. P. Singh, Ram Sagar

arxiv:0911.1489 v1 · 2009-11-08 · 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{ZW2WG6MLEZTSPMWSU3DXE2QBGY}

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	2026-05-18T02:10:58.282900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdb563798b266727b2d2a6c7726a01361c4061b42a337a993f597dc039dab527

Aliases

arxiv: 0911.1489 · arxiv_version: 0911.1489v1 · doi: 10.48550/arxiv.0911.1489 · pith_short_12: ZW2WG6MLEZTS · pith_short_16: ZW2WG6MLEZTSPMWS · pith_short_8: ZW2WG6ML

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/ZW2WG6MLEZTSPMWSU3DXE2QBGY \
  | 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: cdb563798b266727b2d2a6c7726a01361c4061b42a337a993f597dc039dab527

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6cb474d8bfcb5e477b2ba5c9c8d83db3971352487287e49877cafafe7e593fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-08T06:01:10Z",
    "title_canon_sha256": "a8bf7995a4b8ba97973c5e1ccdd13062568d82a5e92a5bc4f6d4b7ba8d9b2e2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1489",
    "kind": "arxiv",
    "version": 1
  }
}