Pith Number

pith:7PQ7WGQJ

pith:2019:7PQ7WGQJYL6KIVCQ6JBDHE6V75

not attested not anchored not stored refs pending

Learning to Optimize Variational Quantum Circuits to Solve Combinatorial Problems

Lukasz Cincio, Prasanna Balaprakash, Ruslan Shaydulin, Sami Khairy, Yuri Alexeev

arxiv:1911.11071 v1 · 2019-11-25 · cs.LG · quant-ph · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7PQ7WGQJYL6KIVCQ6JBDHE6V75}

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	2026-07-05T04:31:55.283413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbe1fb1a09c2fca45450f2423393d5ff73258a6c8eefa24cbe9a7d1fc81a59fa

Aliases

arxiv: 1911.11071 · arxiv_version: 1911.11071v1 · doi: 10.48550/arxiv.1911.11071 · pith_short_12: 7PQ7WGQJYL6K · pith_short_16: 7PQ7WGQJYL6KIVCQ · pith_short_8: 7PQ7WGQJ

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/7PQ7WGQJYL6KIVCQ6JBDHE6V75 \
  | 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: fbe1fb1a09c2fca45450f2423393d5ff73258a6c8eefa24cbe9a7d1fc81a59fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "368eaa664423cd0c313bfcd9cb3dcf753f1ef26a83f0f9fd56e309f209716829",
    "cross_cats_sorted": [
      "quant-ph",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-11-25T17:23:41Z",
    "title_canon_sha256": "6b46b7dd6a19838f4803e2883319cf61a07e5cb13a5083ae9903fad6d913727d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.11071",
    "kind": "arxiv",
    "version": 1
  }
}