Pith Number

pith:BRUCAIIQ

pith:1995:BRUCAIIQP4UCICWZPKG4YP4RF4

not attested not anchored not stored refs pending

Two Topics concerning Black Holes: Extremality of the Energy, Fractality of the Horizon

Rafael D. Sorkin (Syracuse University, UNAM)

arxiv:gr-qc/9508002 v1 · 1995-08-02 · 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{BRUCAIIQP4UCICWZPKG4YP4RF4}

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

2 papers in Pith

The entropy of black hole under second-order deviation from equilibrium

Receipt and verification

First computed	2026-07-04T14:26:02.916971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c682021107f28240ad97a8dcc3f912f104645eb2e6e2204a1a71f6569df6cb9

Aliases

arxiv: gr-qc/9508002 · arxiv_version: gr-qc/9508002v1 · doi: 10.48550/arxiv.gr-qc/9508002 · pith_short_12: BRUCAIIQP4UC · pith_short_16: BRUCAIIQP4UCICWZ · pith_short_8: BRUCAIIQ

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/BRUCAIIQP4UCICWZPKG4YP4RF4 \
  | 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: 0c682021107f28240ad97a8dcc3f912f104645eb2e6e2204a1a71f6569df6cb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f40ef80ffe5dcb56696ddcd4da3f218e8b61a72b7789fce08286b966f7976560",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1995-08-02T04:23:54Z",
    "title_canon_sha256": "e22c2173d1ebc8a7186fad32b778e82153a4854eed855e1f4457df3e5cdbedc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9508002",
    "kind": "arxiv",
    "version": 1
  }
}