Pith Number

pith:5VV2Q4U2

pith:2022:5VV2Q4U2NKQ276YOFGP22ZHMM6

not attested not anchored not stored refs pending

A Robust Hot Subdwarfs Identification Method Based on Deep Learning

Chao Liu, Feng Wang, Hui Deng, Lei Tan, Linhua Deng, Yangping Luo, Ying Mei, Zhicun Liu

arxiv:2201.08967 v1 · 2022-01-22 · 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{5VV2Q4U2NKQ276YOFGP22ZHMM6}

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	2026-07-05T03:50:38.810001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed6ba8729a6aa1affb0e299fad64ec67a4b9c04a33c3a17168d09889bdd32453

Aliases

arxiv: 2201.08967 · arxiv_version: 2201.08967v1 · doi: 10.48550/arxiv.2201.08967 · pith_short_12: 5VV2Q4U2NKQ2 · pith_short_16: 5VV2Q4U2NKQ276YO · pith_short_8: 5VV2Q4U2

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/5VV2Q4U2NKQ276YOFGP22ZHMM6 \
  | 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: ed6ba8729a6aa1affb0e299fad64ec67a4b9c04a33c3a17168d09889bdd32453

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a6b0d164176c3e0be034a9c5d1acaae3c43e74456dbf8163344f5fe12798587",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2022-01-22T05:38:26Z",
    "title_canon_sha256": "4a45b45d0d7b62313621a0fa0b6d4fcbafb4a6eb136bab634485fa0048933f3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.08967",
    "kind": "arxiv",
    "version": 1
  }
}