Pith Number

pith:WRQRSF3E

pith:2019:WRQRSF3E5INYTHUCAZHGZ6UQEX

not attested not anchored not stored refs pending

The partial ionisation zone of heavy elements in F-stars: a study on how it correlates with rotation

Ana Brito, Il\'idio Lopes

arxiv:1906.12308 v1 · 2019-06-28 · 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{WRQRSF3E5INYTHUCAZHGZ6UQEX}

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	2026-05-17T23:41:07.197437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b461191764ea1b899e82064e6cfa9025c796a25de2db4870ec795ef679ff87bb

Aliases

arxiv: 1906.12308 · arxiv_version: 1906.12308v1 · doi: 10.48550/arxiv.1906.12308 · pith_short_12: WRQRSF3E5INY · pith_short_16: WRQRSF3E5INYTHUC · pith_short_8: WRQRSF3E

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/WRQRSF3E5INYTHUCAZHGZ6UQEX \
  | 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: b461191764ea1b899e82064e6cfa9025c796a25de2db4870ec795ef679ff87bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27edf29be26d4b89c7b4ac8ed191fdc042f5e11927d8ce9c6aeb2611da9e40a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-06-28T16:57:00Z",
    "title_canon_sha256": "d6191c9b724f5340b2d13c8cf3c20de3f926067aa51fe45dab9f4982c7803a7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.12308",
    "kind": "arxiv",
    "version": 1
  }
}