Pith Number

pith:B2PORKH7

pith:1995:B2PORKH77KAU4QBSB2FUVWNRR3

not attested not anchored not stored refs pending

Quantum Formation of Black Hole and Wormhole in Gravitational Collapse of a Dust Shell

A.Tomimatsu, K.Nakamura, Y.Oshiro

arxiv:gr-qc/9506032 v1 · 1995-06-17 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B2PORKH77KAU4QBSB2FUVWNRR3}

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	2026-05-18T04:13:47.904513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e9ee8a8fffa814e40320e8b4ad9b18ec5992691a8d7465578124420a89ffe42

Aliases

arxiv: gr-qc/9506032 · arxiv_version: gr-qc/9506032v1 · doi: 10.48550/arxiv.gr-qc/9506032 · pith_short_12: B2PORKH77KAU · pith_short_16: B2PORKH77KAU4QBS · pith_short_8: B2PORKH7

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/B2PORKH77KAU4QBSB2FUVWNRR3 \
  | 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: 0e9ee8a8fffa814e40320e8b4ad9b18ec5992691a8d7465578124420a89ffe42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f0d7e2373f76230051795bfa82e0331c9fdcf5f6b951ca052a818c8c6875db4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1995-06-17T09:11:00Z",
    "title_canon_sha256": "abbf0441f2bf9df37586d3db60fc97332b9acc544e8b1ed6fc1e4aec558190c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9506032",
    "kind": "arxiv",
    "version": 1
  }
}