Pith Number

pith:QZVNOJ2M

pith:2012:QZVNOJ2MSNOLATDML3PHPNWNZZ

not attested not anchored not stored refs pending

Using Separable Bell-Diagonal States to Distribute Entanglement

Alastair Kay

arxiv:1204.0366 v4 · 2012-04-02 · 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{QZVNOJ2MSNOLATDML3PHPNWNZZ}

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	2026-05-18T03:48:13.475582Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

866ad7274c935cb04c6c5ede77b6cdce63e7a1a76dd5c2df344770942f1fff68

Aliases

arxiv: 1204.0366 · arxiv_version: 1204.0366v4 · doi: 10.48550/arxiv.1204.0366 · pith_short_12: QZVNOJ2MSNOL · pith_short_16: QZVNOJ2MSNOLATDM · pith_short_8: QZVNOJ2M

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/QZVNOJ2MSNOLATDML3PHPNWNZZ \
  | 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: 866ad7274c935cb04c6c5ede77b6cdce63e7a1a76dd5c2df344770942f1fff68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c62ebc59b07cfbb3ee27c971dbf6266e52b8bdee2d4a1715a9042065a95cb912",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-04-02T10:49:12Z",
    "title_canon_sha256": "9c1570412095c0ea61e555b355e859bb6d031e191901909ec2e4fcefed0d60a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0366",
    "kind": "arxiv",
    "version": 4
  }
}