Pith Number

pith:PGNNPR42

pith:2007:PGNNPR42PED3A7XSVX2RF7PQMM

not attested not anchored not stored refs pending

Penrose Quantum Antiferromagnet

Anuradha Jagannathan, Attila Szallas, Michel Duneau, Stefan Wessel

arxiv:0707.0629 v2 · 2007-07-04 · cond-mat.str-el

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PGNNPR42PED3A7XSVX2RF7PQMM}

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	2026-05-18T04:09:15.810894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

799ad7c79a7907b07ef2adf512fdf06328db1b81d84b7705cb52e2dcf007979d

Aliases

arxiv: 0707.0629 · arxiv_version: 0707.0629v2 · doi: 10.48550/arxiv.0707.0629 · pith_short_12: PGNNPR42PED3 · pith_short_16: PGNNPR42PED3A7XS · pith_short_8: PGNNPR42

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/PGNNPR42PED3A7XSVX2RF7PQMM \
  | 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: 799ad7c79a7907b07ef2adf512fdf06328db1b81d84b7705cb52e2dcf007979d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "476a630ebe29187371248b8168cda98feada6fcf4fe9456bd35569637a17292f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2007-07-04T14:36:54Z",
    "title_canon_sha256": "863b451f73d36bec419192c19206b01d0eb6edd367b0bf5fabd7b5f051d9a6c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.0629",
    "kind": "arxiv",
    "version": 2
  }
}