Pith Number

pith:P2IRES7T

pith:2009:P2IRES7TSVAJQKDHPP43UDKAKJ

not attested not anchored not stored refs pending

Nonadditive entropy for random quantum spin-S chains

A. Saguia, M. S. Sarandy

arxiv:0912.3718 v2 · 2009-12-18 · quant-ph · 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{P2IRES7TSVAJQKDHPP43UDKAKJ}

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	2026-05-18T02:10:15.591838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e91124bf395409828677bf9ba0d4052716d09cfa8c1e6232866045555c6189d

Aliases

arxiv: 0912.3718 · arxiv_version: 0912.3718v2 · doi: 10.48550/arxiv.0912.3718 · pith_short_12: P2IRES7TSVAJ · pith_short_16: P2IRES7TSVAJQKDH · pith_short_8: P2IRES7T

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/P2IRES7TSVAJQKDHPP43UDKAKJ \
  | 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: 7e91124bf395409828677bf9ba0d4052716d09cfa8c1e6232866045555c6189d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0dbd5840e2b1e32bfab554b2ecade05a742d133c3db4fdbacd85267d0ceee89",
    "cross_cats_sorted": [
      "cond-mat.stat-mech"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-12-18T16:04:57Z",
    "title_canon_sha256": "a4e48f7ff2b3ea646b3421027f9f5d11dcb4c8a073d47a0e10807768c204d6e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3718",
    "kind": "arxiv",
    "version": 2
  }
}