Pith Number

pith:DOLYR5OL

pith:2009:DOLYR5OLQD4LHW4UNMVE65EJ5N

not attested not anchored not stored refs pending

Topology Changing Process of Coalescing Black Holes on Eguchi-Hanson Space

Chul-Moon Yoo, Hideki Ishihara, Masashi Kimura, Shinya Tomizawa

arxiv:0906.4681 v1 · 2009-06-25 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DOLYR5OLQD4LHW4UNMVE65EJ5N}

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	2026-05-18T03:23:59.220803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b9788f5cb80f8b3db946b2a4f7489eb7d5b05e67e84dc3b0b8c3209b5ae2899

Aliases

arxiv: 0906.4681 · arxiv_version: 0906.4681v1 · doi: 10.48550/arxiv.0906.4681 · pith_short_12: DOLYR5OLQD4L · pith_short_16: DOLYR5OLQD4LHW4U · pith_short_8: DOLYR5OL

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/DOLYR5OLQD4LHW4UNMVE65EJ5N \
  | 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: 1b9788f5cb80f8b3db946b2a4f7489eb7d5b05e67e84dc3b0b8c3209b5ae2899

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "905ef986f488b707ca1e3bfa0d2586eab79463813abff4eda7983755897caa30",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-06-25T12:36:53Z",
    "title_canon_sha256": "4fbf6d8790322dc1bd9a3c59de5d9090ad46b1bd3d855958b23cfb500a776949"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.4681",
    "kind": "arxiv",
    "version": 1
  }
}