Pith Number

pith:HG323EIA

pith:2020:HG323EIAJDKQENV463JA3BCSSJ

not attested not anchored not stored refs pending

Variational Quantum Cloning: Improving Practicality for Quantum Cryptanalysis

Brian Coyle, Elham Kashefi, Mina Doosti, Niraj Kumar

arxiv:2012.11424 v1 · 2020-12-21 · quant-ph · cs.AI · cs.CR · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HG323EIAJDKQENV463JA3BCSSJ}

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	2026-07-05T04:14:23.238502Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39b7ad910048d50236bcf6d20d8452927377eba6aee5e969fcfabd6aaec2232d

Aliases

arxiv: 2012.11424 · arxiv_version: 2012.11424v1 · doi: 10.48550/arxiv.2012.11424 · pith_short_12: HG323EIAJDKQ · pith_short_16: HG323EIAJDKQENV4 · pith_short_8: HG323EIA

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/HG323EIAJDKQENV463JA3BCSSJ \
  | 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: 39b7ad910048d50236bcf6d20d8452927377eba6aee5e969fcfabd6aaec2232d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd8178e25d1ba89e4c091058f46d7228a9e1eab5699b6a425c84d374bba69a0a",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CR",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-12-21T15:28:09Z",
    "title_canon_sha256": "b18a4f4d7683d084e647a8f2843f912b8e9d0e8ab14492f7f4adb0cd45260209"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.11424",
    "kind": "arxiv",
    "version": 1
  }
}