Pith Number

pith:7UOT2JS2

pith:2015:7UOT2JS2COMIA73DXQQRIOOW2V

not attested not anchored not stored refs pending

Tunable generation of entangled photons in a nonlinear directional coupler

Alexander S. Solntsev, Andrey A. Sukhorukov, Che Wen Wu, Chunle Xiong, Dragomir N. Neshev, Frank Setzpfandt, James Titchener, Roland Schiek, Thomas Pertsch

arxiv:1507.03321 v1 · 2015-07-13 · 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{7UOT2JS2COMIA73DXQQRIOOW2V}

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	2026-05-18T00:18:47.100644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd1d3d265a1398807f63bc211439d6d54b005ddf1ba3ffe285336645fb4ec9fc

Aliases

arxiv: 1507.03321 · arxiv_version: 1507.03321v1 · doi: 10.48550/arxiv.1507.03321 · pith_short_12: 7UOT2JS2COMI · pith_short_16: 7UOT2JS2COMIA73D · pith_short_8: 7UOT2JS2

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/7UOT2JS2COMIA73DXQQRIOOW2V \
  | 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: fd1d3d265a1398807f63bc211439d6d54b005ddf1ba3ffe285336645fb4ec9fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "149193d555674cda00ff0a0bf3384dc4b563985ea67cfea8f08871af98f674a1",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-07-13T04:22:11Z",
    "title_canon_sha256": "73736dde18c86dfaf85bff8c341d1bd7de5e40143395569fb511ae14fd50ae2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03321",
    "kind": "arxiv",
    "version": 1
  }
}