Pith Number

pith:GPJPDVNO

pith:2011:GPJPDVNOOMTCKYDQ5SWUSJEH6Y

not attested not anchored not stored refs pending

Entanglement Entropy of the Two-Dimensional Heisenberg Antiferromagnet

H. Francis Song, Karyn Le Hur, Nicolas Laflorencie, Stephan Rachel

arxiv:1103.1636 v1 · 2011-03-08 · cond-mat.str-el · 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{GPJPDVNOOMTCKYDQ5SWUSJEH6Y}

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	2026-05-18T04:18:53.014370Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33d2f1d5ae7326256070ecad492487f619918bd808637fd1da0876e89991caef

Aliases

arxiv: 1103.1636 · arxiv_version: 1103.1636v1 · doi: 10.48550/arxiv.1103.1636 · pith_short_12: GPJPDVNOOMTC · pith_short_16: GPJPDVNOOMTCKYDQ · pith_short_8: GPJPDVNO

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/GPJPDVNOOMTCKYDQ5SWUSJEH6Y \
  | 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: 33d2f1d5ae7326256070ecad492487f619918bd808637fd1da0876e89991caef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc38c3f9f8233fc01fa66efed77759eb1791c9a128909ab454b0fda81cf0be6d",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2011-03-08T21:01:40Z",
    "title_canon_sha256": "7699fee0d72f2bc939919fb981b14d58bf987cfd37c4e0344f9244b3fdf1b6ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1636",
    "kind": "arxiv",
    "version": 1
  }
}