Pith Number

pith:SPD5R6Q7

pith:2026:SPD5R6Q7Y76UTNQVOWADVUKDTW

not attested not anchored not stored refs pending

Hybrid quantum-classical neural network for sample-efficient recognition of topological phases

Christoph Hellings, Colin Scarato, Johannes Kn\"orzer, Leon C. Sander, Markus K. Hoffmann, Michael J. Hartmann, Petr Zapletal

arxiv:2606.28199 v1 · 2026-06-26 · quant-ph · cond-mat.str-el

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SPD5R6Q7Y76UTNQVOWADVUKDTW}

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	2026-06-29T01:15:09.054335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93c7d8fa1fc7fd49b61575803ad1439dbd1e16f7f01e5ab7f1697de45450cac8

Aliases

arxiv: 2606.28199 · arxiv_version: 2606.28199v1 · doi: 10.48550/arxiv.2606.28199 · pith_short_12: SPD5R6Q7Y76U · pith_short_16: SPD5R6Q7Y76UTNQV · pith_short_8: SPD5R6Q7

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/SPD5R6Q7Y76UTNQVOWADVUKDTW \
  | 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: 93c7d8fa1fc7fd49b61575803ad1439dbd1e16f7f01e5ab7f1697de45450cac8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "055b0d07084829a24f263baa10f8f30a5e8b4ad98acbabf836f5767fb7d9dc8d",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-06-26T15:48:19Z",
    "title_canon_sha256": "971a07dc10a182b6ddc031b1f0f03462c37090db86b5a66537f71d542e7adf50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.28199",
    "kind": "arxiv",
    "version": 1
  }
}