Pith Number

pith:VRW5KK2Q

pith:2014:VRW5KK2QFQ3BIWNQEYPSE6OYS5

not attested not anchored not stored refs pending

Multiple phase estimation in quantum cloning machines

Chang-Pu Sun, Li Ge, Xiao-Guang Wang, Xing Xiao, Yao Yao

arxiv:1407.5748 v1 · 2014-07-22 · 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{VRW5KK2QFQ3BIWNQEYPSE6OYS5}

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	2026-05-18T02:44:01.556340Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac6dd52b502c361459b0261f2279d89744618dfda83d138a9c518c9df03e1d4a

Aliases

arxiv: 1407.5748 · arxiv_version: 1407.5748v1 · doi: 10.48550/arxiv.1407.5748 · pith_short_12: VRW5KK2QFQ3B · pith_short_16: VRW5KK2QFQ3BIWNQ · pith_short_8: VRW5KK2Q

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/VRW5KK2QFQ3BIWNQEYPSE6OYS5 \
  | 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: ac6dd52b502c361459b0261f2279d89744618dfda83d138a9c518c9df03e1d4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac0185c5273f39bf439cf02b96a3bb2df07ce8c5c3cbf0debde72adc3d5310a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-07-22T06:25:22Z",
    "title_canon_sha256": "869ade588c33c6b9e4b24aa2b9e9382c88c97189877368b324877f2f3355e0c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.5748",
    "kind": "arxiv",
    "version": 1
  }
}