Pith Number

pith:H4ELBQXL

pith:2024:H4ELBQXLYIMPY5RPS4S42PM7JN

not attested not anchored not stored refs pending

cecilia: A Machine Learning-Based Pipeline for Measuring Metal Abundances of Helium-rich Polluted White Dwarfs

A. Vanderburg, J. Via\~na, L. Sha, M. Badenas-Agusti, P. Dufour, S. Blouin, S. Xu

arxiv:2402.05176 v1 · 2024-02-07 · astro-ph.IM · astro-ph.EP · astro-ph.SR · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H4ELBQXLYIMPY5RPS4S42PM7JN}

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	2026-07-05T07:42:45.796944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f08b0c2ebc218fc762f9725cd3d9f4b6b42cbb1d2f6d9d4098043f0561b1545

Aliases

arxiv: 2402.05176 · arxiv_version: 2402.05176v1 · doi: 10.48550/arxiv.2402.05176 · pith_short_12: H4ELBQXLYIMP · pith_short_16: H4ELBQXLYIMPY5RP · pith_short_8: H4ELBQXL

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/H4ELBQXLYIMPY5RPS4S42PM7JN \
  | 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: 3f08b0c2ebc218fc762f9725cd3d9f4b6b42cbb1d2f6d9d4098043f0561b1545

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7632d835e2d2a2d705ba127747724bca2a0fc3cc2299c72c83d8342e4626680",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.SR",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2024-02-07T19:00:02Z",
    "title_canon_sha256": "65638897a6cd9fe7f53118fd5d554d2ad873b7bad5d5079f7c842b3ce0b7d6f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.05176",
    "kind": "arxiv",
    "version": 1
  }
}