Pith Number

pith:W2YIEXPI

pith:2013:W2YIEXPI35RDTWPSTFA7LOET5E

not attested not anchored not stored refs pending

Quantum Cloning Machines and the Applications

Han-Duo Shi, Heng Fan, Jie-Dong Yue, Liang-zhu Mu, Li Jing, Yi-Nan Wang, Yong-Liang Zhang

arxiv:1301.2956 v4 · 2013-01-14 · 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{W2YIEXPI35RDTWPSTFA7LOET5E}

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	2026-05-18T02:39:09.282136Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6b0825de8df6239d9f29941f5b893e9064f8b2ef8d46f634e5c592ad08eb2bf

Aliases

arxiv: 1301.2956 · arxiv_version: 1301.2956v4 · doi: 10.48550/arxiv.1301.2956 · pith_short_12: W2YIEXPI35RD · pith_short_16: W2YIEXPI35RDTWPS · pith_short_8: W2YIEXPI

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/W2YIEXPI35RDTWPSTFA7LOET5E \
  | 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: b6b0825de8df6239d9f29941f5b893e9064f8b2ef8d46f634e5c592ad08eb2bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1894e978e184c9ea223ca72e4db5f75d7182e711bfb1f2e523e954c3daf7d73f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-01-14T12:44:41Z",
    "title_canon_sha256": "bf5a77f5f825118e4763ea84e5f958081a198029dc4db68126912381f9516000"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2956",
    "kind": "arxiv",
    "version": 4
  }
}