Pith Number

pith:DRDZ6YA7

pith:2018:DRDZ6YA7PY74GUHSZHJ45FEWSP

not attested not anchored not stored refs pending

Non-closure of quantum correlation matrices and factorizable channels that require infinite dimensional ancilla

Magdalena Musat, Mikael R{\o}rdam

arxiv:1806.10242 v4 · 2018-06-26 · math.OA · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DRDZ6YA7PY74GUHSZHJ45FEWSP}

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	2026-05-17T23:45:37.842891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c479f601f7e3fc350f2c9d3ce949693cfe6548103eec800414993282974bb6b

Aliases

arxiv: 1806.10242 · arxiv_version: 1806.10242v4 · doi: 10.48550/arxiv.1806.10242 · pith_short_12: DRDZ6YA7PY74 · pith_short_16: DRDZ6YA7PY74GUHS · pith_short_8: DRDZ6YA7

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/DRDZ6YA7PY74GUHSZHJ45FEWSP \
  | 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: 1c479f601f7e3fc350f2c9d3ce949693cfe6548103eec800414993282974bb6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5041efb0cb227f2101c4af555727bd7f84ea3b8f4c421fcca289a20bd8eb6a11",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2018-06-26T23:11:37Z",
    "title_canon_sha256": "1a9ecc1ff1877bf628db4e67a7a17974a3fe4ee05fe8de47b5bf13ef01d359bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.10242",
    "kind": "arxiv",
    "version": 4
  }
}