Pith Number

pith:2H2HG66D

pith:2005:2H2HG66D3NK5KP4VXLTYZ36VVT

not attested not anchored not stored refs pending

Entanglement and alpha entropies for a massive Dirac field in two dimensions

C. D. Fosco, H. Casini, M. Huerta

arxiv:cond-mat/0505563 v2 · 2005-05-23 · cond-mat.other · 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{2H2HG66D3NK5KP4VXLTYZ36VVT}

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

4 papers in Pith

Lectures on entanglement entropy in field theory and holography

Replica Wormholes and the Entropy of Hawking Radiation

Symmetry-Resolved Entanglement Entropy from Heat Kernels

Mutual Information from Modular Flow in General CFTs

Receipt and verification

First computed	2026-05-18T04:28:38.142027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1f4737bc3db55d53f95bae78cefd5ace40b21d0d2a63b1207c55e9e54623a9b

Aliases

arxiv: cond-mat/0505563 · arxiv_version: cond-mat/0505563v2 · doi: 10.48550/arxiv.cond-mat/0505563 · pith_short_12: 2H2HG66D3NK5 · pith_short_16: 2H2HG66D3NK5KP4V · pith_short_8: 2H2HG66D

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/2H2HG66D3NK5KP4VXLTYZ36VVT \
  | 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: d1f4737bc3db55d53f95bae78cefd5ace40b21d0d2a63b1207c55e9e54623a9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d7ea51267432ea458329d82fc2ca9cf56007761618aedac58abdc6e3dc35d75",
    "cross_cats_sorted": [
      "hep-th",
      "quant-ph"
    ],
    "license": "",
    "primary_cat": "cond-mat.other",
    "submitted_at": "2005-05-23T17:07:45Z",
    "title_canon_sha256": "b3800c4cc9f84e2df5b00198cacc6a4608bfb0f4e4e6bb538586ee25f47342de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0505563",
    "kind": "arxiv",
    "version": 2
  }
}