Pith Number

pith:SZL2AR2Z

pith:2021:SZL2AR2ZPA2Z3MCD3QEHTKVSGE

not attested not anchored not stored refs pending

Entropy certification of a realistic QRNG based on single-particle entanglement

Lorenzo Pavesi, Nicol\`o Leone, Sonia Mazzucchi, Stefano Azzini, Valter Moretti

arxiv:2104.06092 v2 · 2021-04-13 · quant-ph · math-ph · math.MP · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SZL2AR2ZPA2Z3MCD3QEHTKVSGE}

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	2026-07-05T03:06:23.538977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9657a0475978359db043dc0879aab231352553f85aa5abc799230365ace39eb1

Aliases

arxiv: 2104.06092 · arxiv_version: 2104.06092v2 · doi: 10.48550/arxiv.2104.06092 · pith_short_12: SZL2AR2ZPA2Z · pith_short_16: SZL2AR2ZPA2Z3MCD · pith_short_8: SZL2AR2Z

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/SZL2AR2ZPA2Z3MCD3QEHTKVSGE \
  | 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: 9657a0475978359db043dc0879aab231352553f85aa5abc799230365ace39eb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de511ae2dbf40ff2b8737ba7f4b2253cda4e64576eea176a84f090a446634e85",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-04-13T10:53:10Z",
    "title_canon_sha256": "0d16b4da1dda336f212a8bc8fc446dc4fa9534d43d96effccddcd04651a28ec9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.06092",
    "kind": "arxiv",
    "version": 2
  }
}