Pith Number

pith:CUNAPSFN

pith:2013:CUNAPSFNM4EVC44JQTTKU4GLQM

not attested not anchored not stored refs pending

Entanglement Entropy of a Massive Fermion on a Torus

Christopher P. Herzog, Tatsuma Nishioka

arxiv:1301.0336 v1 · 2013-01-02 · 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{CUNAPSFNM4EVC44JQTTKU4GLQM}

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

Entanglement of a chiral scalar on the torus

Receipt and verification

First computed	2026-05-18T01:52:22.070939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

151a07c8ad670951738984e6aa70cb833d09ae967e805ac4db35e910774e1c73

Aliases

arxiv: 1301.0336 · arxiv_version: 1301.0336v1 · doi: 10.48550/arxiv.1301.0336 · pith_short_12: CUNAPSFNM4EV · pith_short_16: CUNAPSFNM4EVC44J · pith_short_8: CUNAPSFN

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/CUNAPSFNM4EVC44JQTTKU4GLQM \
  | 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: 151a07c8ad670951738984e6aa70cb833d09ae967e805ac4db35e910774e1c73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05cbde2ebf31c2efc1bea590841455094541893f2b1b8433fba430eddaf49890",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2013-01-02T21:38:42Z",
    "title_canon_sha256": "4f4b9e740cae6a979d6a1d5d395e17478211b5d9dea38f06fdef302f3b49b298"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.0336",
    "kind": "arxiv",
    "version": 1
  }
}