Pith Number

pith:KEOV74FZ

pith:2017:KEOV74FZPYRNEP2YLQXBTEEJJF

not attested not anchored not stored refs pending

Entropy, gap and a multi-parameter deformation of the Fredkin spin chain

Israel Klich, Zhao Zhang

arxiv:1702.03581 v2 · 2017-02-12 · cond-mat.stat-mech · math-ph · math.MP · 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{KEOV74FZPYRNEP2YLQXBTEEJJF}

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	2026-05-18T00:33:21.479611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

511d5ff0b97e22d23f585c2e199089495178dbe491c21ff05976946b16db59dd

Aliases

arxiv: 1702.03581 · arxiv_version: 1702.03581v2 · doi: 10.48550/arxiv.1702.03581 · pith_short_12: KEOV74FZPYRN · pith_short_16: KEOV74FZPYRNEP2Y · pith_short_8: KEOV74FZ

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/KEOV74FZPYRNEP2YLQXBTEEJJF \
  | 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: 511d5ff0b97e22d23f585c2e199089495178dbe491c21ff05976946b16db59dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fa495eff9cd4a9e9cf7a96ec014392a7fced834a3f6e498814895fd2a2a65a0",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2017-02-12T21:52:15Z",
    "title_canon_sha256": "b0c8a83ec2c4ad53c939506d4d1063ff2abead0a8d86945eddd76882cf6c39c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03581",
    "kind": "arxiv",
    "version": 2
  }
}