Pith Number

pith:OSPDMQGR

pith:2022:OSPDMQGRPCXOKTXN3FYH3UF3NW

not attested not anchored not stored refs pending

Extremal Kerr black hole entropy in Poincar\'e gauge theory

Branislav Cvetkovi\'c, Danilo Rakonjac

arxiv:2208.04383 v2 · 2022-08-08 · 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{OSPDMQGRPCXOKTXN3FYH3UF3NW}

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	2026-07-05T05:48:36.832727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

749e3640d178aee54eedd9707dd0bb6dbd52c397d60e9f8a47cf9bb6971e3770

Aliases

arxiv: 2208.04383 · arxiv_version: 2208.04383v2 · doi: 10.48550/arxiv.2208.04383 · pith_short_12: OSPDMQGRPCXO · pith_short_16: OSPDMQGRPCXOKTXN · pith_short_8: OSPDMQGR

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/OSPDMQGRPCXOKTXN3FYH3UF3NW \
  | 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: 749e3640d178aee54eedd9707dd0bb6dbd52c397d60e9f8a47cf9bb6971e3770

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26afa7664ca9531d7949b8239a20f8332a3e6891cfdd75a243aee009a17bbe89",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-08-08T19:38:29Z",
    "title_canon_sha256": "76a0c16404ec7d4cd63329aea212555f51fea894b1283d8949f9e7aa504ebb26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.04383",
    "kind": "arxiv",
    "version": 2
  }
}