Pith Number

pith:QNGLDGVH

pith:2016:QNGLDGVHOXZBUSETGD4TOSMJHB

not attested not anchored not stored refs pending

Conditions for entanglement purification with general two-qubit states

J\'ozsef Zsolt Bern\'ad, Juan Mauricio Torres

arxiv:1608.08585 v1 · 2016-08-30 · 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{QNGLDGVHOXZBUSETGD4TOSMJHB}

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	2026-05-18T00:57:26.255753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

834cb19aa775f21a489330f9374989384596f69a227f8802afe3c23867e47e74

Aliases

arxiv: 1608.08585 · arxiv_version: 1608.08585v1 · doi: 10.48550/arxiv.1608.08585 · pith_short_12: QNGLDGVHOXZB · pith_short_16: QNGLDGVHOXZBUSET · pith_short_8: QNGLDGVH

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/QNGLDGVHOXZBUSETGD4TOSMJHB \
  | 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: 834cb19aa775f21a489330f9374989384596f69a227f8802afe3c23867e47e74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31abb6bfa3c45509f2c1c615c64828004cd59faa379060ed5b0456e800ee5a65",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-08-30T18:08:32Z",
    "title_canon_sha256": "9a96e96c03999b849edfb46ffaa2a366227bfb97699c8fb38020f746730e5090"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.08585",
    "kind": "arxiv",
    "version": 1
  }
}