Pith Number

pith:7J2AKOQV

pith:2011:7J2AKOQVTMTLQ32IG4AB6HNA4O

not attested not anchored not stored refs pending

A Compact Degenerate Primary-Star Progenitor of SN 2011fe

Carole Haswell, D. Andrew Howell, Daniel Kasen, Joshua S. Bloom, Juan Rodriguez, Ken J. Shen, Mark Sullivan, Melissa L. Graham, Nathaniel R. Butler, Peter E. Nugent, Stefan Holmes, Ulrich Kolb, Vadim Burwitz

arxiv:1111.0966 v1 · 2011-11-03 · astro-ph.HE · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7J2AKOQVTMTLQ32IG4AB6HNA4O}

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	2026-05-18T04:05:03.442079Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa74053a159b26b86f4837001f1da0e3888bca67b3116058bb1c3bf7758cb654

Aliases

arxiv: 1111.0966 · arxiv_version: 1111.0966v1 · doi: 10.48550/arxiv.1111.0966 · pith_short_12: 7J2AKOQVTMTL · pith_short_16: 7J2AKOQVTMTLQ32I · pith_short_8: 7J2AKOQV

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/7J2AKOQVTMTLQ32IG4AB6HNA4O \
  | 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: fa74053a159b26b86f4837001f1da0e3888bca67b3116058bb1c3bf7758cb654

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6df68064f0af42104dfc62b32f0a172d51ec860502125decb617a4f5f0a87547",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-11-03T20:00:00Z",
    "title_canon_sha256": "a265ebd06c0ddfa9213cf3a311600ae175e4d2b2242bc3c5d20092d53f43959e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.0966",
    "kind": "arxiv",
    "version": 1
  }
}