Pith Number

pith:QF7RIVWL

pith:1999:QF7RIVWLJZEGUVHQIBUTBS5B22

not attested not anchored not stored refs pending

Supernovae Rates: A Cosmic History

L.R. Yungelson, M. Livio

arxiv:astro-ph/9907359 v1 · 1999-07-26 · 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{QF7RIVWLJZEGUVHQIBUTBS5B22}

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	2026-05-18T04:28:57.145626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

817f1456cb4e486a54f0406930cba1d6898658787a10319a50620e87fa4e225d

Aliases

arxiv: astro-ph/9907359 · arxiv_version: astro-ph/9907359v1 · doi: 10.48550/arxiv.astro-ph/9907359 · pith_short_12: QF7RIVWLJZEG · pith_short_16: QF7RIVWLJZEGUVHQ · pith_short_8: QF7RIVWL

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/QF7RIVWLJZEGUVHQIBUTBS5B22 \
  | 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: 817f1456cb4e486a54f0406930cba1d6898658787a10319a50620e87fa4e225d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ecba66cb4a625507877b9decf7740ad30a35a232e24d36802181561348f8b8c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-07-26T17:33:40Z",
    "title_canon_sha256": "ad84f88bdc83e9e366c8dfa2ef454614002def9217eb01aabaccb57e73a7cceb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9907359",
    "kind": "arxiv",
    "version": 1
  }
}