Pith Number

pith:COVCG2GU

pith:2025:COVCG2GUPQ7Q7VG4QLWRZJ57AJ

not attested not anchored not stored refs pending

The Vertical Metallicity Gradient of the Galactic Disk for Mono-Age Stellar Populations in LAMOST

Bowen Huang, Chun Wang, Gaohuan Long, Haibo Yuan, Ruoyi Zhang, Shuai Xu

arxiv:2504.01779 v1 · 2025-04-02 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{COVCG2GUPQ7Q7VG4QLWRZJ57AJ}

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	2026-07-05T10:43:29.763748Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13aa2368d47c3f0fd4dc82ed1ca7bf026c5014e6fe1af2ab1881a759c889843c

Aliases

arxiv: 2504.01779 · arxiv_version: 2504.01779v1 · doi: 10.48550/arxiv.2504.01779 · pith_short_12: COVCG2GUPQ7Q · pith_short_16: COVCG2GUPQ7Q7VG4 · pith_short_8: COVCG2GU

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/COVCG2GUPQ7Q7VG4QLWRZJ57AJ \
  | 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: 13aa2368d47c3f0fd4dc82ed1ca7bf026c5014e6fe1af2ab1881a759c889843c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3432bdf14c49d015f1b73d6295bf3fbec057bc7e5ea6650c4e8a29a7f814e411",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-04-02T14:43:02Z",
    "title_canon_sha256": "0063d6243b5387da267e4656959f2db1af95b1be5a438bb2733306c70ba97c2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.01779",
    "kind": "arxiv",
    "version": 1
  }
}