Pith Number

pith:A7UJEOHO

pith:2015:A7UJEOHO6SEGMO2UZ2BVMW6XJN

not attested not anchored not stored refs pending

Entropy function from the gravitational surface action for an extremal near horizon black hole

Bibhas Ranjan Majhi

arxiv:1503.08973 v2 · 2015-03-31 · 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{A7UJEOHO6SEGMO2UZ2BVMW6XJN}

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	2026-05-18T01:27:39.379060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07e89238eef488663b54ce83565bd74b596c380d970f96bdaa7df06bf47e8dfc

Aliases

arxiv: 1503.08973 · arxiv_version: 1503.08973v2 · doi: 10.48550/arxiv.1503.08973 · pith_short_12: A7UJEOHO6SEG · pith_short_16: A7UJEOHO6SEGMO2U · pith_short_8: A7UJEOHO

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/A7UJEOHO6SEGMO2UZ2BVMW6XJN \
  | 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: 07e89238eef488663b54ce83565bd74b596c380d970f96bdaa7df06bf47e8dfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9150aa3403ed3ff8b7f54b9e1bf8f46ca3837022870504f956428d9f1d2bed6",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-03-31T09:17:39Z",
    "title_canon_sha256": "d67467721e4faa2c1f74a01de8db69ed847d48ee47c4d6dee24facc3dcce20a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.08973",
    "kind": "arxiv",
    "version": 2
  }
}