Pith Number

pith:Z7AOVD4D

pith:2018:Z7AOVD4DFBOM2SJN2YMOFTFOE7

not attested not anchored not stored refs pending

Study of the abundance features of the metal-poor star HD 94028

Bo Zhang, Guochao Yang, Lu Zhang, Ping Niu, Wanqiang Han

arxiv:1805.04235 v1 · 2018-05-11 · 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{Z7AOVD4DFBOM2SJN2YMOFTFOE7}

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	2026-05-18T00:15:54.030699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfc0ea8f83285ccd492dd618e2ccae27e2d225fdce377fa4f94bb59f846b8478

Aliases

arxiv: 1805.04235 · arxiv_version: 1805.04235v1 · doi: 10.48550/arxiv.1805.04235 · pith_short_12: Z7AOVD4DFBOM · pith_short_16: Z7AOVD4DFBOM2SJN · pith_short_8: Z7AOVD4D

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/Z7AOVD4DFBOM2SJN2YMOFTFOE7 \
  | 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: cfc0ea8f83285ccd492dd618e2ccae27e2d225fdce377fa4f94bb59f846b8478

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5a6ab7308f62a671ace6a01493fff812ed71261beefbaac93d09e341dcf2a8e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-05-11T03:19:44Z",
    "title_canon_sha256": "0f98e17258e7470a853e6d911d08006e81ed38033129f8c6a6fab5592c3c81cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.04235",
    "kind": "arxiv",
    "version": 1
  }
}