Pith Number

pith:JF2JOFBG

pith:2023:JF2JOFBGEE4DR7NOW4KYTDRODY

not attested not anchored not stored refs pending

$\mathrm{H}\alpha$ chromospheric activity of F-, G-, and K-type stars observed by the LAMOST Medium-Resolution Spectroscopic Survey

Ali Luo, Han He, Haotong Zhang, Jun Zhang, Song Wang, Weitao Zhang

arxiv:2307.11431 v2 · 2023-07-21 · 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{JF2JOFBGEE4DR7NOW4KYTDRODY}

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	2026-07-05T06:35:53.534045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4974971426213838fdaeb715898e2e1e0b794502ea91310bc636737519b5f503

Aliases

arxiv: 2307.11431 · arxiv_version: 2307.11431v2 · doi: 10.48550/arxiv.2307.11431 · pith_short_12: JF2JOFBGEE4D · pith_short_16: JF2JOFBGEE4DR7NO · pith_short_8: JF2JOFBG

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/JF2JOFBGEE4DR7NOW4KYTDRODY \
  | 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: 4974971426213838fdaeb715898e2e1e0b794502ea91310bc636737519b5f503

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ea6aae41ee8285afc975b415c29a642b83ef0ad1e201da933c74a3ce25c40c5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2023-07-21T08:47:29Z",
    "title_canon_sha256": "ae039681b90a11608ca68b33aff6b83f75a3e71cb3b388f1c452adba5d1e67d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.11431",
    "kind": "arxiv",
    "version": 2
  }
}