Pith Number

pith:E5NEHURB

pith:2002:E5NEHURBBTZNRQ2OAKTFQLMMZ3

not attested not anchored not stored refs pending

Black hole entropy without brick walls

Li Xiang

arxiv:gr-qc/0204029 v2 · 2002-04-06 · 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{E5NEHURBBTZNRQ2OAKTFQLMMZ3}

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.

Cited by

1 paper in Pith

Black Hole Thermodynamics and Gravity's Rainbow

Receipt and verification

First computed	2026-07-04T16:33:43.055191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

275a43d2210cf2d8c34e02a6582d8cced24f9410c33955d999b161629fd5889f

Aliases

arxiv: gr-qc/0204029 · arxiv_version: gr-qc/0204029v2 · doi: 10.48550/arxiv.gr-qc/0204029 · pith_short_12: E5NEHURBBTZN · pith_short_16: E5NEHURBBTZNRQ2O · pith_short_8: E5NEHURB

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/E5NEHURBBTZNRQ2OAKTFQLMMZ3 \
  | 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: 275a43d2210cf2d8c34e02a6582d8cced24f9410c33955d999b161629fd5889f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "739048a568a8481792fc9b268d36dbeb3571034c041eb9b75307cfa1ce301b7d",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-04-06T06:56:36Z",
    "title_canon_sha256": "a8bbb519b54fc4396e9961db2d9beab36606af997022a28beeb99d7fee9c622c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0204029",
    "kind": "arxiv",
    "version": 2
  }
}