Pith Number

pith:MZYSSNMU

pith:2005:MZYSSNMUVM3RXOUKSOBKDG4MMM

not attested not anchored not stored refs pending

Optimal superbroadcasting of mixed qubit states

Chiara Macchiavello, Francesco Buscemi, Giacomo Mauro D'Ariano, Paolo Perinotti

arxiv:quant-ph/0510155 v1 · 2005-10-19 · 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{MZYSSNMUVM3RXOUKSOBKDG4MMM}

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	2026-07-04T14:51:19.840852Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6671293594ab371bba8a9382a19b8c6336f531ffda522b9aa925283c0c910b56

Aliases

arxiv: quant-ph/0510155 · arxiv_version: quant-ph/0510155v1 · doi: 10.48550/arxiv.quant-ph/0510155 · pith_short_12: MZYSSNMUVM3R · pith_short_16: MZYSSNMUVM3RXOUK · pith_short_8: MZYSSNMU

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/MZYSSNMUVM3RXOUKSOBKDG4MMM \
  | 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: 6671293594ab371bba8a9382a19b8c6336f531ffda522b9aa925283c0c910b56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b24cd2ffc3a0499d5f4942db3c8a3e10de9beb066e046e927cf00dc876e94db0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2005-10-19T23:49:24Z",
    "title_canon_sha256": "c0b3371ca1e4e7c855c53e37a83cfe3c55570be9ff8367a5303917bfc3ba5216"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0510155",
    "kind": "arxiv",
    "version": 1
  }
}