Pith Number

pith:75EX3WOI

pith:2015:75EX3WOIKHNGAF7UDIITKG4W2V

not attested not anchored not stored refs pending

The first stars: a classification of CEMP-no stars

Andre Maeder, Georges Meynet

arxiv:1506.04508 v1 · 2015-06-15 · 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{75EX3WOIKHNGAF7UDIITKG4W2V}

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	2026-05-18T01:36:12.767765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff497dd9c851da6017f41a11351b96d573c1c273ead165fda58082e1a603f3bc

Aliases

arxiv: 1506.04508 · arxiv_version: 1506.04508v1 · doi: 10.48550/arxiv.1506.04508 · pith_short_12: 75EX3WOIKHNG · pith_short_16: 75EX3WOIKHNGAF7U · pith_short_8: 75EX3WOI

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/75EX3WOIKHNGAF7UDIITKG4W2V \
  | 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: ff497dd9c851da6017f41a11351b96d573c1c273ead165fda58082e1a603f3bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bed276342b4a3e50e0d44de9d26050bafc2eb1737727252e6b229910866747e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-06-15T08:26:09Z",
    "title_canon_sha256": "cd95a55f95bf2037506ea83e70fda7df8bfbbcf554a49345f8dceee829669da6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.04508",
    "kind": "arxiv",
    "version": 1
  }
}