Pith Number

pith:M6AD5KPY

pith:2025:M6AD5KPYZK6O64725J4R3ODMGA

not attested not anchored not stored refs pending

Spatial Regionalization: A Hybrid Quantum Computing Approach

Amr Magdy, Federico M. Spedalieri, Ibrahim Sabek, Yunhan Chang

arxiv:2506.18799 v1 · 2025-06-23 · cs.ET · cs.IT · math.IT · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M6AD5KPYZK6O64725J4R3ODMGA}

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	2026-07-05T11:44:07.703797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67803ea9f8cabcef73faea791db86c3005bdad39781554ff5ed9397c87db4ba3

Aliases

arxiv: 2506.18799 · arxiv_version: 2506.18799v1 · doi: 10.48550/arxiv.2506.18799 · pith_short_12: M6AD5KPYZK6O · pith_short_16: M6AD5KPYZK6O6472 · pith_short_8: M6AD5KPY

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/M6AD5KPYZK6O64725J4R3ODMGA \
  | 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: 67803ea9f8cabcef73faea791db86c3005bdad39781554ff5ed9397c87db4ba3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "369ee0f6a294ee5164822e467898707dd55f402e95409aaccf262be94d9bd370",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.ET",
    "submitted_at": "2025-06-23T16:04:05Z",
    "title_canon_sha256": "879ccc919231339ff7364e382f88cca513d78c1a6080c513a0a0dfe36962c802"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.18799",
    "kind": "arxiv",
    "version": 1
  }
}