Pith Number

pith:QYB7GIIF

pith:2003:QYB7GIIFSEKSXWYT6BCDRFJ5UL

not attested not anchored not stored refs pending

Could There Be A Hole In Type Ia Supernovae?

Daniel Kasen, Lifan Wang (Lawrence Berkeley National Laboratory), Peter Nugent, R.C. Thomas

arxiv:astro-ph/0311009 v1 · 2003-11-01 · 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{QYB7GIIFSEKSXWYT6BCDRFJ5UL}

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	2026-07-04T16:37:39.646347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8603f3210591152bdb13f04438953da2ec5b69fa6e0ef26f8d2569998273d2c8

Aliases

arxiv: astro-ph/0311009 · arxiv_version: astro-ph/0311009v1 · doi: 10.48550/arxiv.astro-ph/0311009 · pith_short_12: QYB7GIIFSEKS · pith_short_16: QYB7GIIFSEKSXWYT · pith_short_8: QYB7GIIF

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/QYB7GIIFSEKSXWYT6BCDRFJ5UL \
  | 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: 8603f3210591152bdb13f04438953da2ec5b69fa6e0ef26f8d2569998273d2c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67c69ecab40ec0bf0929af7e57fbbd440542454395fef3d7cbbd77d6d4f6ffc9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-11-01T01:04:19Z",
    "title_canon_sha256": "a05bf4bc905b4b64ce55f65c421919bdce6fe378c58409ccd7715d449aa10ad3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0311009",
    "kind": "arxiv",
    "version": 1
  }
}