Pith Number

pith:4ESGM76U

pith:2001:4ESGM76UXM5FQFFA74DQGPAUT7

not attested not anchored not stored refs pending

When the Casimir energy is not a sum of zero-point energies

Luiz C. de Albuquerque, R. M. Cavalcanti

arxiv:hep-th/0108240 v2 · 2001-08-31 · hep-th · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4ESGM76UXM5FQFFA74DQGPAUT7}

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	2026-05-18T03:24:21.855890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e124667fd4bb3a5814a0ff07033c149fdf9329447e55022910698c7aee983179

Aliases

arxiv: hep-th/0108240 · arxiv_version: hep-th/0108240v2 · doi: 10.48550/arxiv.hep-th/0108240 · pith_short_12: 4ESGM76UXM5F · pith_short_16: 4ESGM76UXM5FQFFA · pith_short_8: 4ESGM76U

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/4ESGM76UXM5FQFFA74DQGPAUT7 \
  | 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: e124667fd4bb3a5814a0ff07033c149fdf9329447e55022910698c7aee983179

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b741512131a700d3070f4a7bf6e9741951e9e001407b356bc1318b8600bdcf2e",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2001-08-31T16:56:03Z",
    "title_canon_sha256": "d8ed12c0887855433b86032ff9f55bb5493ed9c9d08496ad6740822782933649"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0108240",
    "kind": "arxiv",
    "version": 2
  }
}