Pith Number

pith:2FGNH2OW

pith:2022:2FGNH2OW7TVC6Y2XEHADDBNHPX

not attested not anchored not stored refs pending

Identifying hot subdwarf stars from photometric data using Gaussian mixture model and graph neural network

Meng Liu, Wei Liu, Xiaoming Kong, Yude Bu, Zhenping Yi

arxiv:2212.10072 v1 · 2022-12-20 · astro-ph.SR · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2FGNH2OW7TVC6Y2XEHADDBNHPX}

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	2026-07-05T05:27:03.451546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d14cd3e9d6fcea2f635721c03185a77dcf8d90798783b872f5cc7ed04541781c

Aliases

arxiv: 2212.10072 · arxiv_version: 2212.10072v1 · doi: 10.48550/arxiv.2212.10072 · pith_short_12: 2FGNH2OW7TVC · pith_short_16: 2FGNH2OW7TVC6Y2X · pith_short_8: 2FGNH2OW

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/2FGNH2OW7TVC6Y2XEHADDBNHPX \
  | 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: d14cd3e9d6fcea2f635721c03185a77dcf8d90798783b872f5cc7ed04541781c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d37ec7c0517392f4804e461e8c27cda0417f2a5fc7a9767d901328ad7302783",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2022-12-20T08:25:15Z",
    "title_canon_sha256": "a765b63df55cd1fd620bbc6d4382b5009ed3d6d308f93e76b4e36e2f8ddc0754"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.10072",
    "kind": "arxiv",
    "version": 1
  }
}