Pith Number

pith:2KPGQOGL

pith:2014:2KPGQOGLMZEI6TJ7CLRAP2FIOK

not attested not anchored not stored refs pending

Quantum optics: Push-button photon entanglement

Chao-Yang Lu, Jian-Wei Pan

arxiv:1409.7775 v1 · 2014-09-27 · physics.pop-ph · 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{2KPGQOGLMZEI6TJ7CLRAP2FIOK}

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	2026-05-18T01:41:54.755025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d29e6838cb66488f4d3f12e207e8a872b8cc234d65e38fa365534e8eced1b640

Aliases

arxiv: 1409.7775 · arxiv_version: 1409.7775v1 · doi: 10.48550/arxiv.1409.7775 · pith_short_12: 2KPGQOGLMZEI · pith_short_16: 2KPGQOGLMZEI6TJ7 · pith_short_8: 2KPGQOGL

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/2KPGQOGLMZEI6TJ7CLRAP2FIOK \
  | 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: d29e6838cb66488f4d3f12e207e8a872b8cc234d65e38fa365534e8eced1b640

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6f7a0fbf425d1b1a761ab1ab68a5d836471fc3d19da54189f752b9f7bf5ccea",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2014-09-27T07:01:53Z",
    "title_canon_sha256": "c4924cf798264b04a53673058548fdd38bef95c2bb6e7c12c1ec8463fdd44fd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.7775",
    "kind": "arxiv",
    "version": 1
  }
}