Pith Number

pith:EYTOPET4

pith:2003:EYTOPET4SX5G5REF7ZW75DOUS3

not attested not anchored not stored refs pending

Cloning of orthogonal mixed states entails irreversibility

Aditi Sen De, Michal Horodecki, Ujjwal Sen

arxiv:quant-ph/0310142 v1 · 2003-10-22 · 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{EYTOPET4SX5G5REF7ZW75DOUS3}

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	2026-07-04T14:46:26.273217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2626e7927c95fa6ec485fe6dfe8dd496e55617d4873404742ba65cf1824c83bb

Aliases

arxiv: quant-ph/0310142 · arxiv_version: quant-ph/0310142v1 · doi: 10.48550/arxiv.quant-ph/0310142 · pith_short_12: EYTOPET4SX5G · pith_short_16: EYTOPET4SX5G5REF · pith_short_8: EYTOPET4

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/EYTOPET4SX5G5REF7ZW75DOUS3 \
  | 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: 2626e7927c95fa6ec485fe6dfe8dd496e55617d4873404742ba65cf1824c83bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "562d9a4db4b4fcd0a657d400081e0fbe98746e8a20bdc3f22596905c2dd25bca",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2003-10-22T20:01:15Z",
    "title_canon_sha256": "86cb9fd542cf070b42608222e756d7f3b807d90695f0427634612bf9363def17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0310142",
    "kind": "arxiv",
    "version": 1
  }
}