Pith Number

pith:OLJ4AWSZ

pith:2002:OLJ4AWSZDNJ3GQW7XWET5UXVZF

not attested not anchored not stored refs pending

Entanglement concentration of continuous variable quantum states

Jaromir Fiurasek, Jr., Ladislav Mista, Radim Filip

arxiv:quant-ph/0205169 v1 · 2002-05-27 · 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{OLJ4AWSZDNJ3GQW7XWET5UXVZF}

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	2026-05-18T03:47:09.322563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72d3c05a591b53b342dfbd893ed2f5c95c9a83e70a13fcd0cce9cfb888c1a3de

Aliases

arxiv: quant-ph/0205169 · arxiv_version: quant-ph/0205169v1 · doi: 10.48550/arxiv.quant-ph/0205169 · pith_short_12: OLJ4AWSZDNJ3 · pith_short_16: OLJ4AWSZDNJ3GQW7 · pith_short_8: OLJ4AWSZ

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/OLJ4AWSZDNJ3GQW7XWET5UXVZF \
  | 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: 72d3c05a591b53b342dfbd893ed2f5c95c9a83e70a13fcd0cce9cfb888c1a3de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "990516c500d3201284a08b600335bf105290d3238c095aa2c484a383dd18e147",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-05-27T11:20:43Z",
    "title_canon_sha256": "4c89ceaed08fbc79846b302966d230e626abd2a204c2a218c74147fd155578f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0205169",
    "kind": "arxiv",
    "version": 1
  }
}