Pith Number

pith:ZPYMMYMS

pith:2008:ZPYMMYMS43OCUQBMUN4O7DHUBU

not attested not anchored not stored refs pending

Light curve and neutrino spectrum emitted during the collapse of a nonrotating, supermassive star

A. N. Baushev, G. S. Bisnovatyi-Kogan

arxiv:0804.1819 v1 · 2008-04-11 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZPYMMYMS43OCUQBMUN4O7DHUBU}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:15:53.780173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbf0c66192e6dc2a402ca378ef8cf40d13847e930916456b1def1a4cbed967fb

Aliases

arxiv: 0804.1819 · arxiv_version: 0804.1819v1 · doi: 10.48550/arxiv.0804.1819 · pith_short_12: ZPYMMYMS43OC · pith_short_16: ZPYMMYMS43OCUQBM · pith_short_8: ZPYMMYMS

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/ZPYMMYMS43OCUQBMUN4O7DHUBU \
  | 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: cbf0c66192e6dc2a402ca378ef8cf40d13847e930916456b1def1a4cbed967fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f598ee6578c4513eb19c2b1d2189338466da288c100e3a4f9875344d79f3503c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-04-11T00:17:29Z",
    "title_canon_sha256": "d17eafe69b0e449df64313a9c5eb131f74368b9fa35eacb24495ce1cca1f8d38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.1819",
    "kind": "arxiv",
    "version": 1
  }
}