Pith Number

pith:SWOPAKAM

pith:2025:SWOPAKAMPEBL2XXXEW6NEMVYOO

not attested not anchored not stored refs pending

Evolution and star formation history of NGC300 from a chemical evolution model with radial gas inflows

Fenghui Zhang, Rolf-Peter Kudritzki, Xiaobo Gong, Xiaoyu Kang

arxiv:2507.10245 v1 · 2025-07-14 · 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{SWOPAKAMPEBL2XXXEW6NEMVYOO}

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	2026-07-05T11:59:17.784601Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

959cf0280c7902bd5ef725bcd232b873a87b9b1ab93f09b788ed108fa99c9bc1

Aliases

arxiv: 2507.10245 · arxiv_version: 2507.10245v1 · doi: 10.48550/arxiv.2507.10245 · pith_short_12: SWOPAKAMPEBL · pith_short_16: SWOPAKAMPEBL2XXX · pith_short_8: SWOPAKAM

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/SWOPAKAMPEBL2XXXEW6NEMVYOO \
  | 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: 959cf0280c7902bd5ef725bcd232b873a87b9b1ab93f09b788ed108fa99c9bc1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35423bd4f7d7f4289ff13630b5665ad420fe447f6585f7400df110162d6853b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-07-14T13:09:04Z",
    "title_canon_sha256": "5ff856b1fe22c1bb6041be442bb1ae17e17a9f30da025a515b2e6db93e0b2e32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.10245",
    "kind": "arxiv",
    "version": 1
  }
}