Pith Number

pith:YQUD45F7

pith:2017:YQUD45F7WLAO5NJ3MNVYFPFM5J

not attested not anchored not stored refs pending

Carbon line formation and spectroscopy in O-type stars

J. Puls, Luiz P. Carneiro, T.L. Hoffmann

arxiv:1708.08146 v2 · 2017-08-27 · 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{YQUD45F7WLAO5NJ3MNVYFPFM5J}

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	2026-05-18T00:11:42.992288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4283e74bfb2c0eeb53b636b82bcacea4e9c30d90b8822acc56e0404362843cf

Aliases

arxiv: 1708.08146 · arxiv_version: 1708.08146v2 · doi: 10.48550/arxiv.1708.08146 · pith_short_12: YQUD45F7WLAO · pith_short_16: YQUD45F7WLAO5NJ3 · pith_short_8: YQUD45F7

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/YQUD45F7WLAO5NJ3MNVYFPFM5J \
  | 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: c4283e74bfb2c0eeb53b636b82bcacea4e9c30d90b8822acc56e0404362843cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fdd81159666fa33fc938e7ba9f8d87eab7dbb889f19834a71032a59a8debdea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-08-27T22:00:11Z",
    "title_canon_sha256": "8672c18f76ed417cd55deae6868690d9b04eabdd460e766a42200502f82330ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.08146",
    "kind": "arxiv",
    "version": 2
  }
}