Pith Number

pith:NNUNWQDJ

pith:2021:NNUNWQDJDHD4S5CD4RWVFKZDNH

not attested not anchored not stored refs pending

Private Weakly-Random Sequences from Human Heart Rate for Quantum Amplification

Danuta Makowiec, Karol Horodecki, Maciej Stankiewicz, Omer Sakarya

arxiv:2107.14630 v1 · 2021-07-27 · 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{NNUNWQDJDHD4S5CD4RWVFKZDNH}

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	2026-07-05T04:22:38.443448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b68db406919c7c97443e46d52ab2369f1d466ecd94b6c6ce689dfd2e680bde3

Aliases

arxiv: 2107.14630 · arxiv_version: 2107.14630v1 · doi: 10.48550/arxiv.2107.14630 · pith_short_12: NNUNWQDJDHD4 · pith_short_16: NNUNWQDJDHD4S5CD · pith_short_8: NNUNWQDJ

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/NNUNWQDJDHD4S5CD4RWVFKZDNH \
  | 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: 6b68db406919c7c97443e46d52ab2369f1d466ecd94b6c6ce689dfd2e680bde3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14fd25d45e772399dd6707bd0a92a88df25089c848d8f26db14755c72e3074b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-07-27T19:42:43Z",
    "title_canon_sha256": "7b00b0b236a963f93d2fe1aa3970f3ea4e1496271bfdb0cd8b6509db3fbdfdb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.14630",
    "kind": "arxiv",
    "version": 1
  }
}