Pith Number

pith:NDEFHQ7H

pith:2023:NDEFHQ7HBPEZ2PSKD4RM7EQ4Q4

not attested not anchored not stored refs pending

NISQ-compatible approximate quantum algorithm for unconstrained and constrained discrete optimization

A. I. Pakhomchik, Ar. A. Melnikov, A. Termanova, B. Nuriev, C. W. Mansell, I. Kreidich, M. Podobrii, M. R. Perelshtein, S. Iudin, V. M. Vinokur

arxiv:2305.14197 v3 · 2023-05-23 · quant-ph · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NDEFHQ7HBPEZ2PSKD4RM7EQ4Q4}

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	2026-07-05T07:14:53.874044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68c853c3e70bc99d3e4a1f22cf921c870095c36ad8864f80a4d64033a46b60e5

Aliases

arxiv: 2305.14197 · arxiv_version: 2305.14197v3 · doi: 10.48550/arxiv.2305.14197 · pith_short_12: NDEFHQ7HBPEZ · pith_short_16: NDEFHQ7HBPEZ2PSK · pith_short_8: NDEFHQ7H

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/NDEFHQ7HBPEZ2PSKD4RM7EQ4Q4 \
  | 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: 68c853c3e70bc99d3e4a1f22cf921c870095c36ad8864f80a4d64033a46b60e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62611ab936bcd2b22ce3c2533ce392a2ec0234c17cdff1fa3c32f2726715e9ed",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2023-05-23T16:17:57Z",
    "title_canon_sha256": "b352bc4349893c9bbc3579fdc57b05c2cdaea77efa7d4d95323fcb44c4d0a452"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.14197",
    "kind": "arxiv",
    "version": 3
  }
}