Pith Number

pith:6PCCS5QS

pith:2010:6PCCS5QSGFFWJZXJNI4VW5RTEE

not attested not anchored not stored refs pending

Entropy of extremal black holes from entropy of quasiblack holes

Jos\'e P. S. Lemos, Oleg B. Zaslavskii

arxiv:1011.2768 v2 · 2010-11-11 · gr-qc · astro-ph.SR · 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{6PCCS5QSGFFWJZXJNI4VW5RTEE}

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	2026-05-18T04:21:22.511284Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3c4297612314b64e6e96a395b763321362ec6174bdc4214d1dd56b18f4f0a7a

Aliases

arxiv: 1011.2768 · arxiv_version: 1011.2768v2 · doi: 10.48550/arxiv.1011.2768 · pith_short_12: 6PCCS5QSGFFW · pith_short_16: 6PCCS5QSGFFWJZXJ · pith_short_8: 6PCCS5QS

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/6PCCS5QSGFFWJZXJNI4VW5RTEE \
  | 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: f3c4297612314b64e6e96a395b763321362ec6174bdc4214d1dd56b18f4f0a7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ce2f7ff26da7bcd28b94bdb42e09a1bce73c82179f906529ee0828fb861fa8c",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-11-11T21:03:42Z",
    "title_canon_sha256": "c7d4a8db0d566ae7866c147aba10b4d48e3daa6e7c053b35a793f6b404e0ea4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.2768",
    "kind": "arxiv",
    "version": 2
  }
}