Pith Number

pith:76L7LQPT

pith:2026:76L7LQPTSDVU2MLVBF3KSGEOKA

not attested not anchored not stored refs pending

P-dit Probabilistic Ising Machine for Solving the Quadratic Assignment Problem

Andrea Grimaldi, Chadbourne M. Burling-Smith, Christian Duffee, Ermin Wei, Giovanni Finocchio, Jordan Athas, Pedram Khalili Amiri

arxiv:2605.24408 v1 · 2026-05-23 · physics.app-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{76L7LQPTSDVU2MLVBF3KSGEOKA}

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	2026-05-26T01:03:37.948634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff97f5c1f390eb4d31750976a9188e50033089c891b29b84efc33bc64fb01c9d

Aliases

arxiv: 2605.24408 · arxiv_version: 2605.24408v1 · doi: 10.48550/arxiv.2605.24408 · pith_short_12: 76L7LQPTSDVU · pith_short_16: 76L7LQPTSDVU2MLV · pith_short_8: 76L7LQPT

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/76L7LQPTSDVU2MLVBF3KSGEOKA \
  | 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: ff97f5c1f390eb4d31750976a9188e50033089c891b29b84efc33bc64fb01c9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f60bf3f197ba2298072f127de292e3d58df9fae6a142694bbf813024f358515d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2026-05-23T05:36:55Z",
    "title_canon_sha256": "3cc63b84afbddbc2f4d62aaa7afc3df7ba81a691b2d2b1b3630151affaecbf3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.24408",
    "kind": "arxiv",
    "version": 1
  }
}