Pith Number

pith:KPPHI7LP

pith:2013:KPPHI7LPUCEOYKLH3E2S5O3ICH

not attested not anchored not stored refs pending

Free randomness amplification using bipartite chain correlations

Andrzej Grudka, Karol Horodecki, Marcin Paw{\l}owski, Micha{\l} Horodecki, Pawe{\l} Horodecki, Ravishankar Ramanathan

arxiv:1303.5591 v1 · 2013-03-22 · 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{KPPHI7LPUCEOYKLH3E2S5O3ICH}

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	2026-05-18T02:41:24.943865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53de747d6fa088ec2967d9352ebb6811cc6d96a4b956e1ce5568e6e5c6c284b6

Aliases

arxiv: 1303.5591 · arxiv_version: 1303.5591v1 · doi: 10.48550/arxiv.1303.5591 · pith_short_12: KPPHI7LPUCEO · pith_short_16: KPPHI7LPUCEOYKLH · pith_short_8: KPPHI7LP

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/KPPHI7LPUCEOYKLH3E2S5O3ICH \
  | 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: 53de747d6fa088ec2967d9352ebb6811cc6d96a4b956e1ce5568e6e5c6c284b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f17fe8d3a5fe4d6232f84ffbefd5eeb1816d8623b395a966723feb2c29242d85",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-03-22T11:55:36Z",
    "title_canon_sha256": "c5b063199887503755138cac2086d4d7abcc26ad6894f2307dbb1c204dffee46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.5591",
    "kind": "arxiv",
    "version": 1
  }
}