Pith Number

pith:AVFINJDN

pith:2013:AVFINJDN4BW2F5XSXI3OF3GXWQ

not attested not anchored not stored refs pending

Evidence for Two Distinct Populations of Type Ia Supernovae

Alexei V. Filippenko (UC Berkeley), Lifan Wang (Texas A&M), Tianmeng Zhang (NAOC), Xiaofeng Wang (Tsinghua University), Xulin Zhao (Tsinghua University)

arxiv:1303.2601 v1 · 2013-03-11 · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AVFINJDN4BW2F5XSXI3OF3GXWQ}

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	2026-05-18T03:27:53.853340Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

054a86a46de06da2f6f2ba36e2ecd7b411498763da6f135c17dc0c03f6ff8f96

Aliases

arxiv: 1303.2601 · arxiv_version: 1303.2601v1 · doi: 10.48550/arxiv.1303.2601 · pith_short_12: AVFINJDN4BW2 · pith_short_16: AVFINJDN4BW2F5XS · pith_short_8: AVFINJDN

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/AVFINJDN4BW2F5XSXI3OF3GXWQ \
  | 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: 054a86a46de06da2f6f2ba36e2ecd7b411498763da6f135c17dc0c03f6ff8f96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dab090dc7293ed678323c774fe548f8b3966a376b00d208d253c0bfd10b3c8f5",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-11T18:03:06Z",
    "title_canon_sha256": "c889d64b4acff144919ec71e370d8a09cb766771b81f2c3f21d1f470d45841ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.2601",
    "kind": "arxiv",
    "version": 1
  }
}