Pith Number

pith:ZQH6RI2Y

pith:2019:ZQH6RI2YUDWLT5P3PKKS7CP3NS

not attested not anchored not stored refs pending

Comment on "Electron impact excitation and ionization cross section of tungsten ions, W$^{44+}$" by El-Maaref et al. [J. Quant. Spectrosc. Radiat. Transfer 2019, 224:147]

K M Aggarwal

arxiv:1904.07606 v1 · 2019-04-16 · physics.atom-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{ZQH6RI2YUDWLT5P3PKKS7CP3NS}

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	2026-05-17T23:45:26.820562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc0fe8a358a0ecb9f5fb7a952f89fb6cb0692b47b5fca771894bffb6cf737547

Aliases

arxiv: 1904.07606 · arxiv_version: 1904.07606v1 · doi: 10.48550/arxiv.1904.07606 · pith_short_12: ZQH6RI2YUDWL · pith_short_16: ZQH6RI2YUDWLT5P3 · pith_short_8: ZQH6RI2Y

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/ZQH6RI2YUDWLT5P3PKKS7CP3NS \
  | 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: cc0fe8a358a0ecb9f5fb7a952f89fb6cb0692b47b5fca771894bffb6cf737547

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd3cb70d82f6ae7796066deb568140d308732b2b54104c3bc992d7d9108ed97a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2019-04-16T11:38:16Z",
    "title_canon_sha256": "f415e638984534f3b88fda7b301705ba5e59ea633f0ba5a8f4e3c76ed3b83550"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.07606",
    "kind": "arxiv",
    "version": 1
  }
}