Pith Number

pith:BJRAXTX2

pith:2021:BJRAXTX2ZN5YFR2WL6ZPMITU5O

not attested not anchored not stored refs pending

Leggett-Garg inequalities for testing quantumness of gravity

Akira Matsumura, Kazuhiro Yamamoto, Yasusada Nambu

arxiv:2111.14064 v2 · 2021-11-28 · quant-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BJRAXTX2ZN5YFR2WL6ZPMITU5O}

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	2026-07-05T04:50:12.924552Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a620bcefacb7b82c7565fb2f62274ebba6b2750910c83e3ff4a0e9b950063a8

Aliases

arxiv: 2111.14064 · arxiv_version: 2111.14064v2 · doi: 10.48550/arxiv.2111.14064 · pith_short_12: BJRAXTX2ZN5Y · pith_short_16: BJRAXTX2ZN5YFR2W · pith_short_8: BJRAXTX2

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/BJRAXTX2ZN5YFR2WL6ZPMITU5O \
  | 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: 0a620bcefacb7b82c7565fb2f62274ebba6b2750910c83e3ff4a0e9b950063a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75ae3e1b0643ebfa1bf497b08c6e4fbc797055597fb0361f239d5c8a429fb8da",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-11-28T06:35:09Z",
    "title_canon_sha256": "bd2ec936dff3482b50b404460583fb3cae32441bf0fa32e95a45d22e7a792568"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.14064",
    "kind": "arxiv",
    "version": 2
  }
}