Pith Number

pith:W4BTMQ2D

pith:2011:W4BTMQ2DW2HMLUQ7CVIZIIENVU

not attested not anchored not stored refs pending

A high-speed tunable beam splitter for feed-forward photonic quantum information processing

Angie Qarry, Anton Zeilinger, Nuray Tetik, Stefan Zotter, Thomas Jennewein, Xiao-song Ma

arxiv:1109.1762 v2 · 2011-09-08 · quant-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W4BTMQ2DW2HMLUQ7CVIZIIENVU}

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	2026-05-18T02:00:37.778671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b703364343b68ec5d21f155194208dad0a8d2a3814b72c0bff3d8fa96439a123

Aliases

arxiv: 1109.1762 · arxiv_version: 1109.1762v2 · doi: 10.48550/arxiv.1109.1762 · pith_short_12: W4BTMQ2DW2HM · pith_short_16: W4BTMQ2DW2HMLUQ7 · pith_short_8: W4BTMQ2D

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/W4BTMQ2DW2HMLUQ7CVIZIIENVU \
  | 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: b703364343b68ec5d21f155194208dad0a8d2a3814b72c0bff3d8fa96439a123

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "047a7100719433c0a29615dae5b4d2642be7e1b26e323febc44e13c0258e4b15",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-09-08T16:37:17Z",
    "title_canon_sha256": "78244f781ced48bff47570f822d34f94c572b0455096d9017274dfc21c8f7ea8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1762",
    "kind": "arxiv",
    "version": 2
  }
}