Pith Number

pith:2Q4TWJ2I

pith:1995:2Q4TWJ2IVSPGUGE5QMV3E67LK4

not attested not anchored not stored refs pending

Quantum Nonlocality in Two-Photon Experiments at Berkeley

Aephraim M. Steinberg, Paul G. Kwiat, Raymond Y. Chiao

arxiv:quant-ph/9501016 v1 · 1995-01-18 · 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{2Q4TWJ2IVSPGUGE5QMV3E67LK4}

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	2026-05-18T01:05:02.469153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4393b2748ac9e6a189d832bb27beb571a9f1518ef9fda0488dc8ea3b01dd740

Aliases

arxiv: quant-ph/9501016 · arxiv_version: quant-ph/9501016v1 · doi: 10.48550/arxiv.quant-ph/9501016 · pith_short_12: 2Q4TWJ2IVSPG · pith_short_16: 2Q4TWJ2IVSPGUGE5 · pith_short_8: 2Q4TWJ2I

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/2Q4TWJ2IVSPGUGE5QMV3E67LK4 \
  | 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: d4393b2748ac9e6a189d832bb27beb571a9f1518ef9fda0488dc8ea3b01dd740

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eae16faed0a82df222c50b4569b63c53c1629c07307232acdbac9acab23e7131",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1995-01-18T13:16:57Z",
    "title_canon_sha256": "114350184adea91b9ca92f81d90cd5c8b9b2c49d63077b9a07dac7c5642b27ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9501016",
    "kind": "arxiv",
    "version": 1
  }
}