Pith Number

pith:FRX3JCML

pith:2019:FRX3JCMLVGPX7NIRBMG5VMQLEQ

not attested not anchored not stored refs pending

Type Ibn Supernovae May not all Come from Massive Stars

Ann I. Zabludoff, Curtis McCully, Daichi Hiramatsu, D. Andrew Howell, Edo Berger, Griffin Hosseinzadeh, Iair Arcavi, K. Decker French

arxiv:1901.03332 v2 · 2019-01-10 · astro-ph.HE · astro-ph.GA · 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{FRX3JCMLVGPX7NIRBMG5VMQLEQ}

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	2026-05-17T23:55:42.277808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c6fb4898ba99f7fb5110b0ddab20b242e349f8a2d121b69ddf7ff95df204fe3

Aliases

arxiv: 1901.03332 · arxiv_version: 1901.03332v2 · doi: 10.48550/arxiv.1901.03332 · pith_short_12: FRX3JCMLVGPX · pith_short_16: FRX3JCMLVGPX7NIR · pith_short_8: FRX3JCML

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/FRX3JCMLVGPX7NIRBMG5VMQLEQ \
  | 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: 2c6fb4898ba99f7fb5110b0ddab20b242e349f8a2d121b69ddf7ff95df204fe3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8d56c666394ed9aeb40e6dce25d52fb308f1020acb4655c7e8f1b9d16b11dbf",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-01-10T19:00:00Z",
    "title_canon_sha256": "47da65f6c727f9c23e8b6513415546207d072c2379825ca9cbbbc41fe7de8158"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03332",
    "kind": "arxiv",
    "version": 2
  }
}