Pith Number

pith:4VSOG5K6

pith:1999:4VSOG5K6T5LIBSABS2E6GNIWQZ

not attested not anchored not stored refs pending

Influence of the Stellar Population on Type Ia Supernovae: Consequences for the Determination of Omega

H. Umeda, J.C. Wheeler, K.Nomoto, P. H\"oflich

arxiv:astro-ph/9908226 v1 · 1999-08-20 · 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{4VSOG5K6T5LIBSABS2E6GNIWQZ}

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	2026-07-04T16:11:31.930581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e564e3755e9f5680c8019689e33516864ff83850c243319471184f3cf6ae092f

Aliases

arxiv: astro-ph/9908226 · arxiv_version: astro-ph/9908226v1 · doi: 10.48550/arxiv.astro-ph/9908226 · pith_short_12: 4VSOG5K6T5LI · pith_short_16: 4VSOG5K6T5LIBSAB · pith_short_8: 4VSOG5K6

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/4VSOG5K6T5LIBSABS2E6GNIWQZ \
  | 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: e564e3755e9f5680c8019689e33516864ff83850c243319471184f3cf6ae092f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a486f30ebc731f190223273ca2bef36ddc6394e9fe1f9ef01695a911ca2548f4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-08-20T15:05:54Z",
    "title_canon_sha256": "aa61d552f4dd0edbfc5afd58caf49dc7e2cd64764712a4dce57a1f2ae975c697"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9908226",
    "kind": "arxiv",
    "version": 1
  }
}