Pith Number

pith:NVLR67PO

pith:2010:NVLR67PO43AHIDPWKCM5I54BTQ

not attested not anchored not stored refs pending

Solid-State Optimal Phase-Covariant Quantum Cloning Machine

Gang-Qin Liu, Heng Fan, Li-Li Yang, Xin-Yu Pan

arxiv:1009.2618 v2 · 2010-09-14 · 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{NVLR67PO43AHIDPWKCM5I54BTQ}

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	2026-05-18T02:05:30.748371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d571f7deee6c0740df65099d477819c00f1b0bb9b03954346042d1c09f22376

Aliases

arxiv: 1009.2618 · arxiv_version: 1009.2618v2 · doi: 10.48550/arxiv.1009.2618 · pith_short_12: NVLR67PO43AH · pith_short_16: NVLR67PO43AHIDPW · pith_short_8: NVLR67PO

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/NVLR67PO43AHIDPWKCM5I54BTQ \
  | 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: 6d571f7deee6c0740df65099d477819c00f1b0bb9b03954346042d1c09f22376

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16c7593d59c9f58eb209e0c4dddb1518b4613dcbee8cf352dfcfdb43166bc966",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-09-14T10:36:10Z",
    "title_canon_sha256": "a54403193a38c2f9269f3f1e2d1eee85c6b7c73fc332ed5c217a5310f2007e54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.2618",
    "kind": "arxiv",
    "version": 2
  }
}