Pith Number

pith:XUS7F5DP

pith:1997:XUS7F5DPZVQUTZNSGLTJ3L62UV

not attested not anchored not stored refs pending

Entropy and Topology for Gravitational Instantons

Giuseppe Pollifrone (CERN), Stefano Liberati (SISSA)

arxiv:hep-th/9708014 v1 · 1997-08-04 · hep-th · 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{XUS7F5DPZVQUTZNSGLTJ3L62UV}

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.

Cited by

1 paper in Pith

Kerroll black holes

Receipt and verification

First computed	2026-05-18T04:13:47.368187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd25f2f46fcd6149e5b232e69dafdaa54f92a25535539a2bc929e64231f65348

Aliases

arxiv: hep-th/9708014 · arxiv_version: hep-th/9708014v1 · doi: 10.48550/arxiv.hep-th/9708014 · pith_short_12: XUS7F5DPZVQU · pith_short_16: XUS7F5DPZVQUTZNS · pith_short_8: XUS7F5DP

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/XUS7F5DPZVQUTZNSGLTJ3L62UV \
  | 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: bd25f2f46fcd6149e5b232e69dafdaa54f92a25535539a2bc929e64231f65348

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2b59caf12584a1feaef6a49c2b868b234de4266736f2a952ca5d46133eae270",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1997-08-04T13:40:45Z",
    "title_canon_sha256": "5193cc5ac9877dbaeab68581aa411c33ca46e18c03b42ebb4bffcd4703df240b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9708014",
    "kind": "arxiv",
    "version": 1
  }
}