Pith Number

pith:VIRFQPX6

pith:2011:VIRFQPX6N44EZZKDIQKNVENSBY

not attested not anchored not stored refs pending

Entanglement entropies in free fermion gases for arbitrary dimension

Ettore Vicari, Mihail Mintchev, Pasquale Calabrese

arxiv:1110.6276 v1 · 2011-10-28 · cond-mat.quant-gas · 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{VIRFQPX6N44EZZKDIQKNVENSBY}

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	2026-05-18T01:59:50.694935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa22583efe6f384ce5434414da91b20e20dd26761ad8c2810847d876d8a5eb93

Aliases

arxiv: 1110.6276 · arxiv_version: 1110.6276v1 · doi: 10.48550/arxiv.1110.6276 · pith_short_12: VIRFQPX6N44E · pith_short_16: VIRFQPX6N44EZZKD · pith_short_8: VIRFQPX6

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/VIRFQPX6N44EZZKDIQKNVENSBY \
  | 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: aa22583efe6f384ce5434414da91b20e20dd26761ad8c2810847d876d8a5eb93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1fc875ec95fc88188dbc0002a6150fe66fb73a9cd5c853cc22699710cc0e744",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "hep-th",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2011-10-28T08:45:26Z",
    "title_canon_sha256": "6ec62cdefd5d29c5388b3e29bd448434e587ef60636804cbca8f6ebd1695eb83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.6276",
    "kind": "arxiv",
    "version": 1
  }
}