Pith Number

pith:YQSF7F7M

pith:2008:YQSF7F7MKCRYOW44K4J2TEBZRI

not attested not anchored not stored refs pending

Violation of local realism with freedom of choice

Alessandro Fedrizzi, Anton Zeilinger, Johannes Kofler, Lothar Ratschbacher, Nathan K. Langford, Rupert Ursin, Sven Ramelow, Thomas Herbst, Thomas Jennewein, Thomas Scheidl, Xiao-song Ma

arxiv:0811.3129 v2 · 2008-11-19 · 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{YQSF7F7MKCRYOW44K4J2TEBZRI}

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	2026-05-18T04:35:47.907221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4245f97ec50a3875b9c5713a990398a29db2bb42dc6afe2c2dd21639ee7a5e8

Aliases

arxiv: 0811.3129 · arxiv_version: 0811.3129v2 · doi: 10.48550/arxiv.0811.3129 · pith_short_12: YQSF7F7MKCRY · pith_short_16: YQSF7F7MKCRYOW44 · pith_short_8: YQSF7F7M

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/YQSF7F7MKCRYOW44K4J2TEBZRI \
  | 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: c4245f97ec50a3875b9c5713a990398a29db2bb42dc6afe2c2dd21639ee7a5e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68fbff36aeaa5dfed4c63e90e4ce31c3b2f4001db8affdef2fbebd7e27da12ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-11-19T14:32:14Z",
    "title_canon_sha256": "e799eef950141239a5fc0db14f118992b0e6fa9873b9990db6b808f474daf0df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.3129",
    "kind": "arxiv",
    "version": 2
  }
}