Pith Number

pith:42RO4WVS

pith:2010:42RO4WVS6FWNH7YBAHSAA5ZUCI

not attested not anchored not stored refs pending

The frustrated spin-1/2 J1-J2 Heisenberg ferromagnet on the square lattice: Exact diagonalization and Coupled-Cluster study

D.J.J. Farnell, H. Rosner, J. Richter, J. Schulenburg, R. Darradi

arxiv:1002.2299 v1 · 2010-02-11 · cond-mat.str-el · cond-mat.stat-mech

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{42RO4WVS6FWNH7YBAHSAA5ZUCI}

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	2026-05-18T02:09:09.484067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6a2ee5ab2f16cd3ff0101e40077341237a189c2830ddfa41e3e42de91935964

Aliases

arxiv: 1002.2299 · arxiv_version: 1002.2299v1 · doi: 10.48550/arxiv.1002.2299 · pith_short_12: 42RO4WVS6FWN · pith_short_16: 42RO4WVS6FWNH7YB · pith_short_8: 42RO4WVS

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/42RO4WVS6FWNH7YBAHSAA5ZUCI \
  | 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: e6a2ee5ab2f16cd3ff0101e40077341237a189c2830ddfa41e3e42de91935964

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a4945dcbcf4f0248c0a40ff43f7d2dc7f8908652fa677e574bc1e94b2bce80a",
    "cross_cats_sorted": [
      "cond-mat.stat-mech"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2010-02-11T08:45:20Z",
    "title_canon_sha256": "39e7d6b8b4a7afe25d39f23d4826732c27ff109716375f843745d94dccd29109"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.2299",
    "kind": "arxiv",
    "version": 1
  }
}