Pith Number

pith:S3EW6UHB

pith:2024:S3EW6UHB4D2WD7GT6FDVUZ52DW

not attested not anchored not stored refs pending

A computational test of quantum contextuality, and even simpler proofs of quantumness

Alexandru Cojocaru, Andrea Coladangelo, Atul Singh Arora, Kishor Bharti

arxiv:2405.06787 v2 · 2024-05-10 · quant-ph · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S3EW6UHB4D2WD7GT6FDVUZ52DW}

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	2026-07-05T09:30:13.738909Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96c96f50e1e0f561fcd3f1475a67ba1daf83c5200dc3d1d810f6e356abae4651

Aliases

arxiv: 2405.06787 · arxiv_version: 2405.06787v2 · doi: 10.48550/arxiv.2405.06787 · pith_short_12: S3EW6UHB4D2W · pith_short_16: S3EW6UHB4D2WD7GT · pith_short_8: S3EW6UHB

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/S3EW6UHB4D2WD7GT6FDVUZ52DW \
  | 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: 96c96f50e1e0f561fcd3f1475a67ba1daf83c5200dc3d1d810f6e356abae4651

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44549f036382741d167b83d1a931e210341d7036d6b79f9e8d449983be25eaed",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2024-05-10T19:30:23Z",
    "title_canon_sha256": "c46a68130b747caa4bc8d7afff45f811e5c0e260a5f630c60afebb1c4b810dd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2405.06787",
    "kind": "arxiv",
    "version": 2
  }
}