Pith Number

pith:7HLJUQGM

pith:2026:7HLJUQGMARD3HK34NLFO2LNXZC

not attested not anchored not stored refs pending

$K$-Theoretic Obstructions to Linearizing QCA Representations

Bowen Yang, Mattie Ji

arxiv:2606.19657 v1 · 2026-06-17 · math.AT · math-ph · math.MP · math.OA · math.RT · 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{7HLJUQGMARD3HK34NLFO2LNXZC}

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	2026-06-19T16:12:31.429388Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9d69a40cc0447b3ab7c6acaed2db7c8a7ab1a38c7ce6a3974d6ec5a74ed2782

Aliases

arxiv: 2606.19657 · arxiv_version: 2606.19657v1 · doi: 10.48550/arxiv.2606.19657 · pith_short_12: 7HLJUQGMARD3 · pith_short_16: 7HLJUQGMARD3HK34 · pith_short_8: 7HLJUQGM

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/7HLJUQGMARD3HK34NLFO2LNXZC \
  | 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: f9d69a40cc0447b3ab7c6acaed2db7c8a7ab1a38c7ce6a3974d6ec5a74ed2782

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b0e5921b88263f38d27bacb187170e98fc6a5230cfbfddebd0187e735d51168",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "math.OA",
      "math.RT",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2026-06-17T23:42:14Z",
    "title_canon_sha256": "7a8a0dca89b9edfd6b7d73d7a92d1b9ac4acd748680f5910a4675f90d85db3c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19657",
    "kind": "arxiv",
    "version": 1
  }
}