Pith Number

pith:WBBWPWHI

pith:2002:WBBWPWHIBHTCLHZLP6OWE2COFK

not attested not anchored not stored refs pending

Black Brane Entropy from Brane-Antibrane Systems

Alberto Guijosa, Martin Kruczenski, Ulf H. Danielsson

arxiv:gr-qc/0204010 v1 · 2002-04-02 · 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{WBBWPWHIBHTCLHZLP6OWE2COFK}

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	2026-05-18T02:37:35.704367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b04367d8e809e6259f2b7f9d62684e2a893e77627f2f980dc065484d71e5b64d

Aliases

arxiv: gr-qc/0204010 · arxiv_version: gr-qc/0204010v1 · doi: 10.48550/arxiv.gr-qc/0204010 · pith_short_12: WBBWPWHIBHTC · pith_short_16: WBBWPWHIBHTCLHZL · pith_short_8: WBBWPWHI

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/WBBWPWHIBHTCLHZLP6OWE2COFK \
  | 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: b04367d8e809e6259f2b7f9d62684e2a893e77627f2f980dc065484d71e5b64d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33619b43282792f7d11952fb3b7efedff73a31c7719f0203d8d62a3d9da6f731",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-04-02T21:01:48Z",
    "title_canon_sha256": "f8d4c1d2b52ee3f285a5a856e2686f84a7fafd773c6e0bdec7f3bd0ba9c00aca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0204010",
    "kind": "arxiv",
    "version": 1
  }
}