Pith Number

pith:V2T7EXMG

pith:2002:V2T7EXMGC4K3A4BJ5552HB3HA7

not attested not anchored not stored refs pending

A stronger no-cloning theorem

Richard Jozsa (University of Bristol UK)

arxiv:quant-ph/0204153 v2 · 2002-04-26 · 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{V2T7EXMGC4K3A4BJ5552HB3HA7}

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	2026-07-04T14:45:55.884782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aea7f25d861715b07029ef7ba3876707db71fb696e8e7fe808e054e5439b8aa4

Aliases

arxiv: quant-ph/0204153 · arxiv_version: quant-ph/0204153v2 · doi: 10.48550/arxiv.quant-ph/0204153 · pith_short_12: V2T7EXMGC4K3 · pith_short_16: V2T7EXMGC4K3A4BJ · pith_short_8: V2T7EXMG

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/V2T7EXMGC4K3A4BJ5552HB3HA7 \
  | 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: aea7f25d861715b07029ef7ba3876707db71fb696e8e7fe808e054e5439b8aa4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a1a907867ee435e3f2b5df80685a6a4b1e394b20fc8559239027c6a519f0f49",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-04-26T08:02:05Z",
    "title_canon_sha256": "9ce9e0ab8988bda69a9d13eb35dbc9d24ea758aeefbb5fa1e378fd5d64d0ec1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0204153",
    "kind": "arxiv",
    "version": 2
  }
}