Pith Number

pith:W2BSFREN

pith:2012:W2BSFRENJ5ZWCH2N4VUZ3WKYBB

not attested not anchored not stored refs pending

Entanglement negativity in quantum field theory

Erik Tonni, John Cardy, Pasquale Calabrese

arxiv:1206.3092 v2 · 2012-06-14 · cond-mat.stat-mech · 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{W2BSFRENJ5ZWCH2N4VUZ3WKYBB}

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

3 papers in Pith

Separability and entanglement of resonating valence-bond states

Separability from Multipartite Measures

Receipt and verification

First computed	2026-05-18T03:42:46.037384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b68322c48d4f73611f4de5699dd958085db6fff97352c061986359bf088bd367

Aliases

arxiv: 1206.3092 · arxiv_version: 1206.3092v2 · doi: 10.48550/arxiv.1206.3092 · pith_short_12: W2BSFRENJ5ZW · pith_short_16: W2BSFRENJ5ZWCH2N · pith_short_8: W2BSFREN

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/W2BSFRENJ5ZWCH2N4VUZ3WKYBB \
  | 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: b68322c48d4f73611f4de5699dd958085db6fff97352c061986359bf088bd367

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c08606fdc7c5c24b1afcffe5ed666bbc22f0cac6478b82233c8bdd638d5c3f4",
    "cross_cats_sorted": [
      "hep-th",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2012-06-14T12:46:26Z",
    "title_canon_sha256": "970eb5c0c31466578b3131fb6191e57d4fd29022e34bf1395caca6bb880d36b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.3092",
    "kind": "arxiv",
    "version": 2
  }
}