Pith Number

pith:5KGM4IWK

pith:2009:5KGM4IWK5QZEGEJOOZATA3V5CK

not attested not anchored not stored refs pending

Violation of the Leggett-Garg inequality with weak measurements of photons

A. G. White, B. P. Lanyon, G. J. Pryde, J. L. O'Brien, M. Barbieri, M. E. Goggin, M. P. Almeida

arxiv:0907.1679 v1 · 2009-07-09 · 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{5KGM4IWK5QZEGEJOOZATA3V5CK}

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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.

Cited by

1 paper in Pith

Leggett-Garg Inequality Violations Bound Quantum Fisher Information

Receipt and verification

First computed	2026-05-18T04:25:37.957769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea8cce22caec3243112e7641306ebd12aff931892dcef643c3fe6747590ed1c3

Aliases

arxiv: 0907.1679 · arxiv_version: 0907.1679v1 · doi: 10.48550/arxiv.0907.1679 · pith_short_12: 5KGM4IWK5QZE · pith_short_16: 5KGM4IWK5QZEGEJO · pith_short_8: 5KGM4IWK

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/5KGM4IWK5QZEGEJOOZATA3V5CK \
  | 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: ea8cce22caec3243112e7641306ebd12aff931892dcef643c3fe6747590ed1c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5837626540108b3b0c662ccb819dde2f989d967678ef840ae4f4e90232d249f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-07-09T21:04:27Z",
    "title_canon_sha256": "3739af696f25204137df3e62fa85967ab4169532e43246565f5fd0613f3dae41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.1679",
    "kind": "arxiv",
    "version": 1
  }
}