Pith Number

pith:5XKSAVTG

pith:2018:5XKSAVTGA6J7BQZPCZURNWAKOV

not attested not anchored not stored refs pending

The Initial mass function of the first stars inferred from extremely metal-poor stars

Chiaki Kobayashi, Ken'ichi Nomoto, Miho N. Ishigaki, Nozomu Tominaga

arxiv:1801.07763 v3 · 2018-01-23 · astro-ph.SR · 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{5XKSAVTGA6J7BQZPCZURNWAKOV}

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	2026-05-18T00:17:40.962141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

edd52056660793f0c32f166916d80a75623a451c089a9ce8a9a479459ce07950

Aliases

arxiv: 1801.07763 · arxiv_version: 1801.07763v3 · doi: 10.48550/arxiv.1801.07763 · pith_short_12: 5XKSAVTGA6J7 · pith_short_16: 5XKSAVTGA6J7BQZP · pith_short_8: 5XKSAVTG

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/5XKSAVTGA6J7BQZPCZURNWAKOV \
  | 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: edd52056660793f0c32f166916d80a75623a451c089a9ce8a9a479459ce07950

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "986f8147172d21c0955adc15d592362b41f6fe932fb425b3d40a966efcc055be",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-01-23T20:46:10Z",
    "title_canon_sha256": "cdd08e896367735f10116d234eab45ebea88032bea441b99d29093f04bb324e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07763",
    "kind": "arxiv",
    "version": 3
  }
}