Pith Number

pith:VO4BL37U

pith:2019:VO4BL37UBAOX7H7ZZJZEOKK2DX

not attested not anchored not stored refs pending

Origin of $\alpha$-rich young stars: clues from C, N and O

Jennifer A. Johnson, Saskia Hekker

arxiv:1906.10830 v1 · 2019-06-26 · astro-ph.SR · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VO4BL37UBAOX7H7ZZJZEOKK2DX}

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	2026-05-17T23:42:13.122946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abb815eff4081d7f9ff9ca7247295a1dff57f22c3a9052a537336047c4efdf31

Aliases

arxiv: 1906.10830 · arxiv_version: 1906.10830v1 · doi: 10.48550/arxiv.1906.10830 · pith_short_12: VO4BL37UBAOX · pith_short_16: VO4BL37UBAOX7H7Z · pith_short_8: VO4BL37U

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/VO4BL37UBAOX7H7ZZJZEOKK2DX \
  | 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: abb815eff4081d7f9ff9ca7247295a1dff57f22c3a9052a537336047c4efdf31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09fefc625feb1d6487a7cc5a43bfddd41bd7cb195e972bede299d1f30f4edc48",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-06-26T03:50:32Z",
    "title_canon_sha256": "73f9c06fbdb15598271a3640b2d132eea213ab83973a4b28f4ba49435ba0890b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.10830",
    "kind": "arxiv",
    "version": 1
  }
}