Pith Number

pith:4TFODBA7

pith:2002:4TFODBA73UMJ25LXCPZOO2O65B

not attested not anchored not stored refs pending

Classical and Quantum Thermodynamics of horizons in spherically symmetric spacetimes

T.Padmanabhan

arxiv:gr-qc/0204019 v2 · 2002-04-04 · gr-qc · astro-ph · hep-th

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4TFODBA73UMJ25LXCPZOO2O65B}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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

3 papers in Pith

Semi-classical spacetime thermodynamics

Black hole chemistry: thermodynamics with Lambda

$g_{tt}g_{rr} =-1$ black hole thermodynamics in extended quasi-topological gravity

Receipt and verification

First computed	2026-05-18T04:35:35.012500Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4cae1841fdd189d757713f2e769dee851c5ae935b9f0995a95aa5433e704ea0

Aliases

arxiv: gr-qc/0204019 · arxiv_version: gr-qc/0204019v2 · doi: 10.48550/arxiv.gr-qc/0204019 · pith_short_12: 4TFODBA73UMJ · pith_short_16: 4TFODBA73UMJ25LX · pith_short_8: 4TFODBA7

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/4TFODBA73UMJ25LXCPZOO2O65B \
  | 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: e4cae1841fdd189d757713f2e769dee851c5ae935b9f0995a95aa5433e704ea0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be646277a34fe81d3938199c0eca7962b94c4dac6d63c589c0d2f776b24d0b6c",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-04-04T14:56:02Z",
    "title_canon_sha256": "91a31b9c7e11522b19a65619bcc0dc1326e9413a73b9139aa460ac9ba991e7a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0204019",
    "kind": "arxiv",
    "version": 2
  }
}