Pith Number

pith:4RIK37XL

pith:2011:4RIK37XLAE5BIXPVOGIU4COWOJ

not attested not anchored not stored refs pending

A search for Type Ia supernova progenitors: the central stars of the planetary nebulae NGC 2392 and NGC 6026

Ashkbiz Danehkar, David J. Frew, Orsola De Marco, Quentin A. Parker

arxiv:1109.2181 v1 · 2011-09-10 · 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{4RIK37XLAE5BIXPVOGIU4COWOJ}

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	2026-05-18T03:35:54.408641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e450adfeeb013a145df571914e09d67252f8074f77dea5c9d814aa2663c01160

Aliases

arxiv: 1109.2181 · arxiv_version: 1109.2181v1 · doi: 10.48550/arxiv.1109.2181 · pith_short_12: 4RIK37XLAE5B · pith_short_16: 4RIK37XLAE5BIXPV · pith_short_8: 4RIK37XL

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/4RIK37XLAE5BIXPVOGIU4COWOJ \
  | 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: e450adfeeb013a145df571914e09d67252f8074f77dea5c9d814aa2663c01160

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54dbf768c065618b3d645601a5e5b5465f175beb4be4c6ad08221f7ef138c71f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-10T01:49:15Z",
    "title_canon_sha256": "36d981895c80c9298906e94e53dec264dac1c0a3c84abf51116b00c177d815e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2181",
    "kind": "arxiv",
    "version": 1
  }
}