Pith Number

pith:GVJBZ2KB

pith:2009:GVJBZ2KBWTW6PSZNBL5YWOQRWM

not attested not anchored not stored refs pending

Exact entanglement entropy of the XYZ model and its sine-Gordon limit

Elisa Ercolessi, Francesco Ravanini, Stefano Evangelisti

arxiv:0905.4000 v4 · 2009-05-25 · 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{GVJBZ2KBWTW6PSZNBL5YWOQRWM}

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	2026-05-18T03:43:19.124657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35521ce941b4ede7cb2d0afb8b3a11b3151b7f1b600f7b1c32ec78f0faba1fbf

Aliases

arxiv: 0905.4000 · arxiv_version: 0905.4000v4 · doi: 10.48550/arxiv.0905.4000 · pith_short_12: GVJBZ2KBWTW6 · pith_short_16: GVJBZ2KBWTW6PSZN · pith_short_8: GVJBZ2KB

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/GVJBZ2KBWTW6PSZNBL5YWOQRWM \
  | 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: 35521ce941b4ede7cb2d0afb8b3a11b3151b7f1b600f7b1c32ec78f0faba1fbf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d9fc8001901a4f7f1a0bd7c0df1cd6dda76881719765f44baac91fdd532f430",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-05-25T12:47:53Z",
    "title_canon_sha256": "52adf536b9cc4f181d6292795355a0beeb5c9ba8faec725759656220d7a486e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.4000",
    "kind": "arxiv",
    "version": 4
  }
}