Pith Number

pith:YBN42W6E

pith:2020:YBN42W6EUDAQXVCZSGYGYNPVOL

not attested not anchored not stored refs pending

VeSElkA: Vertical Stratification of Element Abundances in CP stars

Francis LeBlanc, Oleksandr Kobzar, Viktor Khalack

arxiv:2003.02936 v1 · 2020-03-05 · 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{YBN42W6EUDAQXVCZSGYGYNPVOL}

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	2026-07-05T00:46:08.294430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c05bcd5bc4a0c10bd45991b06c35f572c51dccb788d66be6faaa44ddd099d3b5

Aliases

arxiv: 2003.02936 · arxiv_version: 2003.02936v1 · doi: 10.48550/arxiv.2003.02936 · pith_short_12: YBN42W6EUDAQ · pith_short_16: YBN42W6EUDAQXVCZ · pith_short_8: YBN42W6E

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/YBN42W6EUDAQXVCZSGYGYNPVOL \
  | 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: c05bcd5bc4a0c10bd45991b06c35f572c51dccb788d66be6faaa44ddd099d3b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a704ffb6e137e8c43cfef4a2fe3f6204c2174ba3e62578461521c1dee545b673",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-03-05T21:36:30Z",
    "title_canon_sha256": "fb229ae1961aa60c31020c6711773bfa617dd26ab161619fbb1b0d334406a454"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.02936",
    "kind": "arxiv",
    "version": 1
  }
}