Pith Number

pith:GHZYZOZ7

pith:2005:GHZYZOZ7UYF6IASU66VDAARYKY

not attested not anchored not stored refs pending

Usefulness of classical communication for local cloning of entangled states

Aditi Sen De, Dagmar Bruss, Maciej Lewenstein, Rafal Demkowicz-Dobrzanski, Ujjwal Sen

arxiv:quant-ph/0502103 v2 · 2005-02-16 · 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{GHZYZOZ7UYF6IASU66VDAARYKY}

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	2026-07-04T15:54:43.998474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31f38cbb3fa60be40254f7aa300238560f11978af31b6eef34ba37c697c86277

Aliases

arxiv: quant-ph/0502103 · arxiv_version: quant-ph/0502103v2 · doi: 10.48550/arxiv.quant-ph/0502103 · pith_short_12: GHZYZOZ7UYF6 · pith_short_16: GHZYZOZ7UYF6IASU · pith_short_8: GHZYZOZ7

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/GHZYZOZ7UYF6IASU66VDAARYKY \
  | 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: 31f38cbb3fa60be40254f7aa300238560f11978af31b6eef34ba37c697c86277

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c27020e7026a52b2e15c911dcf42a0cc178bd09c362eebe148b268075fe73e3f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2005-02-16T17:43:33Z",
    "title_canon_sha256": "ac2751dee9d69a140b84860959da256a5499e541ca76470250af9ae2a02fbe24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0502103",
    "kind": "arxiv",
    "version": 2
  }
}