Pith Number

pith:7WWZLMTS

pith:2015:7WWZLMTSNE5H3VJXWMVVISEQRE

not attested not anchored not stored refs pending

Population III Stars in I Zw 18

13388, CNRS, France), Greenbelt, Ivan Hubeny (University of Arizona, Jean-Claude Bouret (Aix Marseille Universit\'e, Laboratoire d'Astrophysique de Marseille, Marseille, MD 20771, Sally Heap (NASA Goddard Space Flight Center, UMR 7326, USA)

arxiv:1504.02742 v1 · 2015-04-10 · astro-ph.GA

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T02:19:06.727920Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdad95b272693a7dd537b32b5448908917597290b03dff6836ddfefced6f7c13

Aliases

arxiv: 1504.02742 · arxiv_version: 1504.02742v1 · doi: 10.48550/arxiv.1504.02742

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/7WWZLMTSNE5H3VJXWMVVISEQRE \
  | 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: fdad95b272693a7dd537b32b5448908917597290b03dff6836ddfefced6f7c13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "caa046fa8ea9a5d80efc04f83703c0cd09f14d7c1df7d93ebe4d2e02db9908d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-04-10T17:25:33Z",
    "title_canon_sha256": "caa203d410767dffff4795c3c73818fec3f63bdb85b9b207c6c73660f3baa45f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.02742",
    "kind": "arxiv",
    "version": 1
  }
}