Pith Number

pith:CA3FFWTD

pith:2014:CA3FFWTD55DPKZ3BIRSQMWC7QX

not attested not anchored not stored refs pending

A quantum algorithm for additive approximation of Ising partition functions

Akira Matsuo, Keisuke Fujii, Nobuyuki Imoto

arxiv:1405.2749 v1 · 2014-05-12 · quant-ph · cond-mat.dis-nn · cond-mat.stat-mech · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CA3FFWTD55DPKZ3BIRSQMWC7QX}

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	2026-05-18T02:45:22.076444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

103652da63ef46f56761446506585f85f595696bf1eff23eddf79d89b79da999

Aliases

arxiv: 1405.2749 · arxiv_version: 1405.2749v1 · doi: 10.48550/arxiv.1405.2749 · pith_short_12: CA3FFWTD55DP · pith_short_16: CA3FFWTD55DPKZ3B · pith_short_8: CA3FFWTD

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/CA3FFWTD55DPKZ3BIRSQMWC7QX \
  | 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: 103652da63ef46f56761446506585f85f595696bf1eff23eddf79d89b79da999

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0afe0e2d71afe22a3201795782f728e40144798b5e50a5b95e71860e79061c63",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "cond-mat.stat-mech",
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-05-12T13:34:06Z",
    "title_canon_sha256": "8eb5ca34a31d31a124c09b1f60377948843781273cde8ef91a0d5712e78d944c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.2749",
    "kind": "arxiv",
    "version": 1
  }
}