Pith Number

pith:E4PLGL74

pith:1999:E4PLGL74H4JWSSWF6SXIJURAX5

not attested not anchored not stored refs pending

Sign Rules for Anisotropic Quantum Spin Systems

D.J.J. Farnell, J.B. Parkinson, R.F. Bishop

arxiv:cond-mat/9902219 v1 · 1999-02-16 · 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{E4PLGL74H4JWSSWF6SXIJURAX5}

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	2026-05-18T00:36:48.291001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

271eb32ffc3f13694ac5f4ae84d220bf7ec63412f919356ed072058cfb6983d4

Aliases

arxiv: cond-mat/9902219 · arxiv_version: cond-mat/9902219v1 · doi: 10.48550/arxiv.cond-mat/9902219 · pith_short_12: E4PLGL74H4JW · pith_short_16: E4PLGL74H4JWSSWF · pith_short_8: E4PLGL74

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/E4PLGL74H4JWSSWF6SXIJURAX5 \
  | 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: 271eb32ffc3f13694ac5f4ae84d220bf7ec63412f919356ed072058cfb6983d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c2655fca8309fe7e53fe5e34b7d41f58bb5820c8b4e58f856a7d5e9aee359cf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "1999-02-16T14:18:35Z",
    "title_canon_sha256": "ec1f00b15b5e9f82ab6df040808b868e8d86b9e91a22fce70e52ede23d5f1573"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/9902219",
    "kind": "arxiv",
    "version": 1
  }
}