Pith Number

pith:6HPI6S2U

pith:2012:6HPI6S2U6NPTYG44LJ3A3N5ARC

not attested not anchored not stored refs pending

Strong Kochen-Specker theorem and incomputability of quantum randomness

Alastair A. Abbott, Cristian S. Calude, Jonathan Conder, Karl Svozil

arxiv:1207.2029 v4 · 2012-07-09 · 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{6HPI6S2U6NPTYG44LJ3A3N5ARC}

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	2026-05-18T03:38:14.070537Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1de8f4b54f35f3c1b9c5a760db7a088b836c529d21493129607a2089182883e

Aliases

arxiv: 1207.2029 · arxiv_version: 1207.2029v4 · doi: 10.48550/arxiv.1207.2029 · pith_short_12: 6HPI6S2U6NPT · pith_short_16: 6HPI6S2U6NPTYG44 · pith_short_8: 6HPI6S2U

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/6HPI6S2U6NPTYG44LJ3A3N5ARC \
  | 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: f1de8f4b54f35f3c1b9c5a760db7a088b836c529d21493129607a2089182883e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21d2128c879ed4a660c82829d397a3f47c9ecf99659b94c21d98852f3b1fc7dc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-07-09T13:07:39Z",
    "title_canon_sha256": "4f5971a68389f0b19aa492479d2b995f4a7317ba97d5079e66b81b93f6fb9c2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2029",
    "kind": "arxiv",
    "version": 4
  }
}