Pith Number

pith:NZ3QXQYI

pith:2010:NZ3QXQYI6UWYMTDQDNINBF7ABZ

not attested not anchored not stored refs pending

Massive Oe/Be stars at low metallicity: Candidate progenitors of long GRBs?

Christophe Martayan (ESO-Chile, Dietrich Baade (ESO-HQ), GEPI), Jean Zorec (IAP), Juan Fabregat, Sylvia Ekstrom, Yves Fremat

arxiv:1010.3343 v1 · 2010-10-16 · 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{NZ3QXQYI6UWYMTDQDNINBF7ABZ}

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	2026-05-18T02:05:04.204006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e770bc308f52d864c701b50d097e00e5b406937b39bcb418028c95120590891

Aliases

arxiv: 1010.3343 · arxiv_version: 1010.3343v1 · doi: 10.48550/arxiv.1010.3343 · pith_short_12: NZ3QXQYI6UWY · pith_short_16: NZ3QXQYI6UWYMTDQ · pith_short_8: NZ3QXQYI

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/NZ3QXQYI6UWYMTDQDNINBF7ABZ \
  | 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: 6e770bc308f52d864c701b50d097e00e5b406937b39bcb418028c95120590891

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1a92132805f5a979c1349386f0c303b41e480864acc649e62a186691cbbe73a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-10-16T12:29:16Z",
    "title_canon_sha256": "6e6a47fa66f723f67887711b879af8237ce17d9e6a22032f9f6311974b938d56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.3343",
    "kind": "arxiv",
    "version": 1
  }
}