Pith Number

pith:NZ5VXRJD

pith:2018:NZ5VXRJDBWIZ5KDQBSREOYT6OH

not attested not anchored not stored refs pending

NLTE analysis of copper lines in different stellar populations

G. Zhao, H. L. Yan, J. R. Shi, Z. M. Zhou

arxiv:1806.02225 v2 · 2018-06-06 · 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{NZ5VXRJDBWIZ5KDQBSREOYT6OH}

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	2026-05-18T00:08:41.268499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e7b5bc5230d919ea8700ca247627e71d13206c2753fb930228c6d68096e468d

Aliases

arxiv: 1806.02225 · arxiv_version: 1806.02225v2 · doi: 10.48550/arxiv.1806.02225 · pith_short_12: NZ5VXRJDBWIZ · pith_short_16: NZ5VXRJDBWIZ5KDQ · pith_short_8: NZ5VXRJD

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/NZ5VXRJDBWIZ5KDQBSREOYT6OH \
  | 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: 6e7b5bc5230d919ea8700ca247627e71d13206c2753fb930228c6d68096e468d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8bedf2da42d2989da9cfc96a5e47b43894096f0a787908a3f00833ce8385f3f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-06-06T14:43:53Z",
    "title_canon_sha256": "ef97c349ca1686ac6186578063b378b2ac138b4dcb023b0e1d64b2d4cd1f36c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.02225",
    "kind": "arxiv",
    "version": 2
  }
}