Pith Number

pith:X5IA5OME

pith:2023:X5IA5OME7CD3PSCNPDCPDV742Z

not attested not anchored not stored refs pending

Confident Detection of Doubly-Ionized Thorium in the Extreme Ap Star CPD-62 2717

David L. Nidever, Ewa Niemczura, Gautier Mathys, Jonathan Labadie-Bartz, S. Drew Chojnowski, Sten Hasselquist, Swetlana Hubrig

arxiv:2304.12938 v2 · 2023-04-25 · 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{X5IA5OME7CD3PSCNPDCPDV742Z}

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	2026-07-05T06:06:44.126803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf500eb984f887b7c84d78c4f1d7fcd67a53f18b97690c1bd001db9adaf20b45

Aliases

arxiv: 2304.12938 · arxiv_version: 2304.12938v2 · doi: 10.48550/arxiv.2304.12938 · pith_short_12: X5IA5OME7CD3 · pith_short_16: X5IA5OME7CD3PSCN · pith_short_8: X5IA5OME

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/X5IA5OME7CD3PSCNPDCPDV742Z \
  | 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: bf500eb984f887b7c84d78c4f1d7fcd67a53f18b97690c1bd001db9adaf20b45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bca311b814b5e53c4d5794f68e7e2bfc8303594542a78ca4770e64c2bcc8487",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2023-04-25T15:52:16Z",
    "title_canon_sha256": "cde760f5d0c9fa29466a0c48e02702fb3ea769322e4390d5d734b88a43f3c819"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.12938",
    "kind": "arxiv",
    "version": 2
  }
}