Pith Number

pith:IQH642PF

pith:2011:IQH642PFYDEZT4T3AZV4MFC7CD

not attested not anchored not stored refs pending

Massive Be and Oe stars at low metallicity and long gamma ray bursts

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

arxiv:1110.3244 v1 · 2011-10-14 · 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{IQH642PFYDEZT4T3AZV4MFC7CD}

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	2026-05-18T04:10:57.685247Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

440fee69e5c0c999f27b066bc6145f10f7e3992eb04e2ccb46757f0a5db2a95c

Aliases

arxiv: 1110.3244 · arxiv_version: 1110.3244v1 · doi: 10.48550/arxiv.1110.3244 · pith_short_12: IQH642PFYDEZ · pith_short_16: IQH642PFYDEZT4T3 · pith_short_8: IQH642PF

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/IQH642PFYDEZT4T3AZV4MFC7CD \
  | 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: 440fee69e5c0c999f27b066bc6145f10f7e3992eb04e2ccb46757f0a5db2a95c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ee36d17b10ba09965737f79cb44960f58975e16a5eae0f5c5d9fb538d8340b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-10-14T15:14:35Z",
    "title_canon_sha256": "6d23e00837cde8ab4edc69f40b4c280ad30dea97659a157855691199988e53a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.3244",
    "kind": "arxiv",
    "version": 1
  }
}