Pith Number

pith:QXDBEG7F

pith:2018:QXDBEG7FJGL7TLWPLSITYRVZ2H

not attested not anchored not stored refs pending

Complete extension: the non-signaling analog of quantum purification

John H. Selby, Karol Horodecki, {\L}ukasz Pankowski, Marco Piani, Marek Winczewski, Pawe{\l} Horodecki, Ravishankar Ramanathan, Tamoghna Das

arxiv:1810.02222 v5 · 2018-10-04 · 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{QXDBEG7FJGL7TLWPLSITYRVZ2H}

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	2026-07-05T07:10:16.784546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85c6121be54997f9aecf5c913c46b9d1f1eea13d094647b17285bf7240c1d598

Aliases

arxiv: 1810.02222 · arxiv_version: 1810.02222v5 · doi: 10.48550/arxiv.1810.02222 · pith_short_12: QXDBEG7FJGL7 · pith_short_16: QXDBEG7FJGL7TLWP · pith_short_8: QXDBEG7F

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/QXDBEG7FJGL7TLWPLSITYRVZ2H \
  | 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: 85c6121be54997f9aecf5c913c46b9d1f1eea13d094647b17285bf7240c1d598

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b8b48e17f66105aec920600da6d2fe949aaaa699ac27e2d76ecbde3f72b1fc6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-10-04T14:00:50Z",
    "title_canon_sha256": "9f434a13cc11608df02b406c3e649181f2347b950a3527c78faf50b430399254"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.02222",
    "kind": "arxiv",
    "version": 5
  }
}