Pith Number

pith:ECR4RZQX

pith:2026:ECR4RZQXWHCELKG6KISPQTSTXZ

not attested not anchored not stored refs pending

Quantum Contextuality and Entanglement-Free Grover Search in a Trapped-Ion Optical Qudit

Alex Jin, Jasper Phua Sing Cheng, Jos\'e Ignacio Latorre, Manas Mukherjee, Sergi Ramos-Calderer, Tarun Dutta

arxiv:2608.04128 v1 · 2026-08-04 · quant-ph · physics.atom-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{ECR4RZQXWHCELKG6KISPQTSTXZ}

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	2026-08-06T01:30:41.192347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20a3c8e617b1c445a8de5224f84e53be7dc780eee2112b4537bd394d4217db27

Aliases

arxiv: 2608.04128 · arxiv_version: 2608.04128v1 · doi: 10.48550/arxiv.2608.04128 · pith_short_12: ECR4RZQXWHCE · pith_short_16: ECR4RZQXWHCELKG6 · pith_short_8: ECR4RZQX

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/ECR4RZQXWHCELKG6KISPQTSTXZ \
  | 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: 20a3c8e617b1c445a8de5224f84e53be7dc780eee2112b4537bd394d4217db27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1a8bcbcf0236c8622fa16adc5feacf3fa4f3273fc3eec03eb713c1be4f3ffec",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-08-04T18:27:03Z",
    "title_canon_sha256": "d28ac47ceb26925fa847f573f386d4bdd09c2d6c8df6e61d3fe3c596b4d54e71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.04128",
    "kind": "arxiv",
    "version": 1
  }
}