Pith Number

pith:4O3WM3BB

pith:2006:4O3WM3BBRCBM5IPQBFOO536IKH

not attested not anchored not stored refs pending

Measurements and analysis of helium-like triplet ratios in the X-ray spectra of O-type stars

David H. Cohen, Frits B. S. Paerels, Maurice A. Leutenegger, Steven M. Kahn

arxiv:astro-ph/0606370 v1 · 2006-06-15 · 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{4O3WM3BBRCBM5IPQBFOO536IKH}

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	2026-05-18T04:29:04.558393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3b7666c218882cea1f0095ceeefc851d0901639904f4c25924fa9303e238d83

Aliases

arxiv: astro-ph/0606370 · arxiv_version: astro-ph/0606370v1 · doi: 10.48550/arxiv.astro-ph/0606370 · pith_short_12: 4O3WM3BBRCBM · pith_short_16: 4O3WM3BBRCBM5IPQ · pith_short_8: 4O3WM3BB

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/4O3WM3BBRCBM5IPQBFOO536IKH \
  | 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: e3b7666c218882cea1f0095ceeefc851d0901639904f4c25924fa9303e238d83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa907d6f89bb91bc2cca49f3e792cce6c448fbf0607bf60ed9a7a0ea8088e1df",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-06-15T04:28:36Z",
    "title_canon_sha256": "a2724d0efe6ec0207aae77c6948a45d0579aa85cb697bbb0bcf673ca63ebc126"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0606370",
    "kind": "arxiv",
    "version": 1
  }
}