Pith Number

pith:JG74CIL3

pith:2026:JG74CIL3SXCZDE3DCFDUYPEJJV

not attested not anchored not stored refs pending

Quantum Incapacity beyond No-Cloning and PPT Mechanisms

Chengkai Zhu, Xin Wang

arxiv:2607.24693 v1 · 2026-07-27 · 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{JG74CIL3SXCZDE3DCFDUYPEJJV}

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	2026-07-28T02:24:22.736700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49bfc1217b95c591936311474c3c894d40ecd96ebea107acd26b5b78d9d1df53

Aliases

arxiv: 2607.24693 · arxiv_version: 2607.24693v1 · doi: 10.48550/arxiv.2607.24693 · pith_short_12: JG74CIL3SXCZ · pith_short_16: JG74CIL3SXCZDE3D · pith_short_8: JG74CIL3

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/JG74CIL3SXCZDE3DCFDUYPEJJV \
  | 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: 49bfc1217b95c591936311474c3c894d40ecd96ebea107acd26b5b78d9d1df53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b509ba1ebd2c5a22f190580c854835744a19c2ad7375dc8c52a1eb3d309993ce",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-27T17:35:48Z",
    "title_canon_sha256": "727a0881eead0ccc20c89357df5956d7ba91e6a4085e35987aadbd6bd8877511"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.24693",
    "kind": "arxiv",
    "version": 1
  }
}