Pith Number

pith:3X2QUXSQ

pith:2021:3X2QUXSQPZMFSLA5BOYHMBU4CU

not attested not anchored not stored refs pending

Quantum Approximate Optimization Algorithm applied to the binary perceptron

Carlo Baldassi, Giuseppe E. Santoro, Glen B. Mbeng, Pietro Torta, Riccardo Zecchina

arxiv:2112.10219 v1 · 2021-12-19 · quant-ph · cond-mat.dis-nn · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3X2QUXSQPZMFSLA5BOYHMBU4CU}

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	2026-07-05T03:42:12.522824Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ddf50a5e507e58592c1d0bb076069c150a96875f9fffc57471a112061d0a92dc

Aliases

arxiv: 2112.10219 · arxiv_version: 2112.10219v1 · doi: 10.48550/arxiv.2112.10219 · pith_short_12: 3X2QUXSQPZMF · pith_short_16: 3X2QUXSQPZMFSLA5 · pith_short_8: 3X2QUXSQ

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/3X2QUXSQPZMFSLA5BOYHMBU4CU \
  | 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: ddf50a5e507e58592c1d0bb076069c150a96875f9fffc57471a112061d0a92dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a05dd902bc61e629d0b889e6539494e4dc7c507cc118cb69a580591d5039c11",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-12-19T18:33:22Z",
    "title_canon_sha256": "28f5dd8fd0a2688bb0e14513f1682cde293f5b0d4750b37b683236be62b54790"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.10219",
    "kind": "arxiv",
    "version": 1
  }
}