Pith Number

pith:OLUP2ABS

pith:2012:OLUP2ABSGKAM3U6RLCJVLFCY7Q

not attested not anchored not stored refs pending

Surface term, Virasoro algebra, and Wald entropy of black holes in higher-curvature gravity

Bin Wang, Shao-Jun Zhang

arxiv:1212.6896 v3 · 2012-12-31 · 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{OLUP2ABSGKAM3U6RLCJVLFCY7Q}

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	2026-05-18T03:33:11.285424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72e8fd00323280cdd3d15893559458fc172a1f313f9aa371e24f4ff19fad8242

Aliases

arxiv: 1212.6896 · arxiv_version: 1212.6896v3 · doi: 10.48550/arxiv.1212.6896 · pith_short_12: OLUP2ABSGKAM · pith_short_16: OLUP2ABSGKAM3U6R · pith_short_8: OLUP2ABS

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/OLUP2ABSGKAM3U6RLCJVLFCY7Q \
  | 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: 72e8fd00323280cdd3d15893559458fc172a1f313f9aa371e24f4ff19fad8242

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "256d555c0f777e71d727b314e1d6325dddb6c0adc895dac14f6c8d51b5107b81",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2012-12-31T14:16:58Z",
    "title_canon_sha256": "ea7a7adae3a6f07444e96fd6926faa9c30ec175c60d7eb60647db68ecaf8a6f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.6896",
    "kind": "arxiv",
    "version": 3
  }
}