Pith Number

pith:3EZMFHUP

pith:2009:3EZMFHUPKDLRP4LTEEZG5H2GMU

not attested not anchored not stored refs pending

On the Bekenstein-Hawking area law for black objects with conical singularities

Burkhard Kleihaus, Carlos Herdeiro, Eugen Radu, Jutta Kunz

arxiv:0912.3386 v2 · 2009-12-17 · 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{3EZMFHUPKDLRP4LTEEZG5H2GMU}

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	2026-05-18T03:23:56.412344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d932c29e8f50d717f17321326e9f46650223eb4a11a1c2304fe1640437557905

Aliases

arxiv: 0912.3386 · arxiv_version: 0912.3386v2 · doi: 10.48550/arxiv.0912.3386 · pith_short_12: 3EZMFHUPKDLR · pith_short_16: 3EZMFHUPKDLRP4LT · pith_short_8: 3EZMFHUP

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/3EZMFHUPKDLRP4LTEEZG5H2GMU \
  | 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: d932c29e8f50d717f17321326e9f46650223eb4a11a1c2304fe1640437557905

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7133c2645bc6685770eaea612799e2622e5959c5dfca45607f3bf42df555b1f0",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-12-17T12:33:30Z",
    "title_canon_sha256": "9b84d813ee29b3d6a73dc95b81727a92282c326b68c0d6d2b8e6afae3946ec19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3386",
    "kind": "arxiv",
    "version": 2
  }
}