Pith Number

pith:Z76X2LJM

pith:2004:Z76X2LJM7RF5AU6XQK2VPI5MW2

not attested not anchored not stored refs pending

Entanglement Entropy and Quantum Field Theory

John Cardy, Pasquale Calabrese

arxiv:hep-th/0405152 v3 · 2004-05-18 · hep-th · cond-mat.stat-mech · 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{Z76X2LJM7RF5AU6XQK2VPI5MW2}

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

24 papers in Pith

Entropy Variations and Light Ray Operators from Replica Defects

Lectures on entanglement entropy in field theory and holography

Separability and entanglement of resonating valence-bond states

Timelike entanglement entropy Revisited

Entanglement Entropy and Thermodynamics of Dynamical Black Holes

Receipt and verification

First computed	2026-05-18T04:28:37.495305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cffd7d2d2cfc4bd053d782b557a3acb6a8bc517d833755dd2015017d1cda0050

Aliases

arxiv: hep-th/0405152 · arxiv_version: hep-th/0405152v3 · doi: 10.48550/arxiv.hep-th/0405152 · pith_short_12: Z76X2LJM7RF5 · pith_short_16: Z76X2LJM7RF5AU6X · pith_short_8: Z76X2LJM

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/Z76X2LJM7RF5AU6XQK2VPI5MW2 \
  | 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: cffd7d2d2cfc4bd053d782b557a3acb6a8bc517d833755dd2015017d1cda0050

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5206ff7e67bfded4963caa4ceb59fcc66f26d5a735545a867fee30d2a97bee2",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2004-05-18T14:41:52Z",
    "title_canon_sha256": "593cc23492b82869d4cc822b7e94940f2875b1977a31e39aef07c94b5aab50ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0405152",
    "kind": "arxiv",
    "version": 3
  }
}