Pith Number

pith:LGBKU7RQ

pith:2019:LGBKU7RQRWZHVTXIBLHOFSJKSQ

not attested not anchored not stored refs pending

Searching for Hot Subdwarf Stars in LAMOST DR1-II. Pure spectroscopic identification method for hot subdwarfs

Gang Zhao, Jingkun Zhao, P\'eter N\'emeth, Yude Bu, Zhenxin Lei

arxiv:1907.00132 v1 · 2019-06-29 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LGBKU7RQRWZHVTXIBLHOFSJKSQ}

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	2026-05-17T23:41:57.377669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5982aa7e308db27acee80acee2c92a9438160b7ff28bc899d21da5ee03ae93e2

Aliases

arxiv: 1907.00132 · arxiv_version: 1907.00132v1 · doi: 10.48550/arxiv.1907.00132 · pith_short_12: LGBKU7RQRWZH · pith_short_16: LGBKU7RQRWZHVTXI · pith_short_8: LGBKU7RQ

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/LGBKU7RQRWZHVTXIBLHOFSJKSQ \
  | 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: 5982aa7e308db27acee80acee2c92a9438160b7ff28bc899d21da5ee03ae93e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb541bb9b4408b1299d6aa0bca0207afc22df0f3eb36d99e15346865c1769816",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-06-29T02:29:38Z",
    "title_canon_sha256": "916af82f263b114550363290acde600d655c1dc601f6635cf099a563d9dbbb67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.00132",
    "kind": "arxiv",
    "version": 1
  }
}