Pith Number

pith:QJKI5THI

pith:2005:QJKI5THIVXWERXBMVGPMVTNB23

not attested not anchored not stored refs pending

The separability versus entanglement problem

Aditi Sen De, Anna Sanpera, Maciej Lewenstein, Ujjwal Sen

arxiv:quant-ph/0508032 v1 · 2005-08-03 · 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{QJKI5THIVXWERXBMVGPMVTNB23}

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	2026-07-04T14:47:01.223395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82548ecce8adec48dc2ca99ecacda1d6d77da52a1d4b515d816b412ef23d38a5

Aliases

arxiv: quant-ph/0508032 · arxiv_version: quant-ph/0508032v1 · doi: 10.48550/arxiv.quant-ph/0508032 · pith_short_12: QJKI5THIVXWE · pith_short_16: QJKI5THIVXWERXBM · pith_short_8: QJKI5THI

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/QJKI5THIVXWERXBMVGPMVTNB23 \
  | 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: 82548ecce8adec48dc2ca99ecacda1d6d77da52a1d4b515d816b412ef23d38a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77e879a54e801f62f2dffd65a59a61a0a9aa6eb1fd41a434b7ebec3bf1e380a2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2005-08-03T14:27:11Z",
    "title_canon_sha256": "9842e932916f9ca1faa80c0b4b5351f59fad5e8ee4c6dd960a718c397dce0fe1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0508032",
    "kind": "arxiv",
    "version": 1
  }
}