Pith Number

pith:7NO6BRSY

pith:2014:7NO6BRSYKX73HFBV4B5PBOL66S

not attested not anchored not stored refs pending

The Complexity of Ferromagnetic Two-spin Systems with External Fields

Chihao Zhang, Jingcheng Liu, Pinyan Lu

arxiv:1402.4346 v1 · 2014-02-18 · cs.CC · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7NO6BRSYKX73HFBV4B5PBOL66S}

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	2026-05-18T02:58:44.137700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb5de0c65855ffb39435e07af0b97ef49f682b9f40a7640444527473ec7fe83e

Aliases

arxiv: 1402.4346 · arxiv_version: 1402.4346v1 · doi: 10.48550/arxiv.1402.4346 · pith_short_12: 7NO6BRSYKX73 · pith_short_16: 7NO6BRSYKX73HFBV · pith_short_8: 7NO6BRSY

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/7NO6BRSYKX73HFBV4B5PBOL66S \
  | 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: fb5de0c65855ffb39435e07af0b97ef49f682b9f40a7640444527473ec7fe83e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bae4feb937723ae2871ce94cf404b651b86a54cf8bf2ef109bc801c3ef12fa25",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-02-18T14:20:54Z",
    "title_canon_sha256": "aa36237a27df99644d295465f5afe3bacbea735145f5b1911605514f49128075"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.4346",
    "kind": "arxiv",
    "version": 1
  }
}