Pith Number

pith:UOOHZVPS

pith:2010:UOOHZVPSZ3FXDW6JYVM4DK7HYN

not attested not anchored not stored refs pending

Experimental Evidence of Quantum Randomness Incomputability

Cristian S. Calude, Karl Svozil, Michael J. Dinneen, Monica Dumitrescu

arxiv:1004.1521 v2 · 2010-04-09 · quant-ph · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UOOHZVPSZ3FXDW6JYVM4DK7HYN}

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	2026-05-18T04:42:34.352231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a39c7cd5f2cecb71dbc9c559c1abe7c34c7c846978b55cc0e7037a5b7f890b82

Aliases

arxiv: 1004.1521 · arxiv_version: 1004.1521v2 · doi: 10.48550/arxiv.1004.1521 · pith_short_12: UOOHZVPSZ3FX · pith_short_16: UOOHZVPSZ3FXDW6J · pith_short_8: UOOHZVPS

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/UOOHZVPSZ3FXDW6JYVM4DK7HYN \
  | 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: a39c7cd5f2cecb71dbc9c559c1abe7c34c7c846978b55cc0e7037a5b7f890b82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "789abc98889da73b001d5d6f5450ae5b281b995ff0047079f6255ba898500061",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-04-09T10:46:19Z",
    "title_canon_sha256": "c2e34a93168f6c488af76d0a8109538c4619f8e43a5acd9c1681c8a7d725b7ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1521",
    "kind": "arxiv",
    "version": 2
  }
}