Pith Number

pith:EM67NKZT

pith:1999:EM67NKZTJAJL62NBHR6VMVFPKJ

not attested not anchored not stored refs pending

The Origin of Diversity of Type Ia Supernovae and Environmental Effects

C. Kobayashi, H. Umeda, I. Hachisu, K. Nomoto, M. Kato

arxiv:astro-ph/9906192 v2 · 1999-06-10 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EM67NKZTJAJL62NBHR6VMVFPKJ}

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	2026-07-04T16:11:18.545388Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

233df6ab334812bf69a13c7d5654af5257642de5e1f6261fd50a70246ab8ae7d

Aliases

arxiv: astro-ph/9906192 · arxiv_version: astro-ph/9906192v2 · doi: 10.48550/arxiv.astro-ph/9906192 · pith_short_12: EM67NKZTJAJL · pith_short_16: EM67NKZTJAJL62NB · pith_short_8: EM67NKZT

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/EM67NKZTJAJL62NBHR6VMVFPKJ \
  | 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: 233df6ab334812bf69a13c7d5654af5257642de5e1f6261fd50a70246ab8ae7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c6841b36df9f98fe4052eb093e7a0e6d55c20f7dab32fff01f7a187c98d0a59",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-06-10T17:10:40Z",
    "title_canon_sha256": "34566a304cec999140ab9525b3adc45d635603283049f6b02ec75101bfe18935"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9906192",
    "kind": "arxiv",
    "version": 2
  }
}