Pith Number

pith:HOXK4DAM

pith:2007:HOXK4DAMYG2L3IFCUMVJXO6OS2

not attested not anchored not stored refs pending

Wald's entropy is equal to a quarter of the horizon area in units of the effective gravitational coupling

Dan Gorbonos, Merav Hadad, Ram Brustein

arxiv:0712.3206 v3 · 2007-12-19 · 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{HOXK4DAMYG2L3IFCUMVJXO6OS2}

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

Cosmological scalar perturbations in Horndeski-like gravity

Receipt and verification

First computed	2026-05-18T02:35:24.011274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3baeae0c0cc1b4bda0a2a32a9bbbce9693dfcf2abd9bb18f586bc74730c643e9

Aliases

arxiv: 0712.3206 · arxiv_version: 0712.3206v3 · doi: 10.48550/arxiv.0712.3206 · pith_short_12: HOXK4DAMYG2L · pith_short_16: HOXK4DAMYG2L3IFC · pith_short_8: HOXK4DAM

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/HOXK4DAMYG2L3IFCUMVJXO6OS2 \
  | 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: 3baeae0c0cc1b4bda0a2a32a9bbbce9693dfcf2abd9bb18f586bc74730c643e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c13ea77e9f7359cf3dd39cf0787e1d25a323e7b0952b1ff657504468a9b5a31",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2007-12-19T17:13:40Z",
    "title_canon_sha256": "e805ae837f32aa58836ee27c3091c6a5e3c3015795f089e0b844ff707749c309"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.3206",
    "kind": "arxiv",
    "version": 3
  }
}