Pith Number

pith:KNWBAGWT

pith:2012:KNWBAGWT5CZW646NN7PRLPV2TV

not attested not anchored not stored refs pending

Variability in X-ray line ratios in helium-like ions of massive stars: the radiation-driven case

K. T. Hole, R. Ignace

arxiv:1202.3193 v1 · 2012-02-15 · 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{KNWBAGWT5CZW646NN7PRLPV2TV}

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	2026-05-18T01:58:28.329761Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

536c101ad3e8b36f73cd6fdf15beba9d42ed644448c1ee791c0c07f9fdd24ab6

Aliases

arxiv: 1202.3193 · arxiv_version: 1202.3193v1 · doi: 10.48550/arxiv.1202.3193 · pith_short_12: KNWBAGWT5CZW · pith_short_16: KNWBAGWT5CZW646N · pith_short_8: KNWBAGWT

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/KNWBAGWT5CZW646NN7PRLPV2TV \
  | 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: 536c101ad3e8b36f73cd6fdf15beba9d42ed644448c1ee791c0c07f9fdd24ab6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d145ae7066b069db27a8460550a72c9514f888efe001d13367b4d74e96aef42",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-02-15T02:22:14Z",
    "title_canon_sha256": "b8b1e6a9efc48b66afb4c136cf74cbbfc47de90eeb69701ef29989f1ffcf756f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3193",
    "kind": "arxiv",
    "version": 1
  }
}