Pith Number

pith:ESXEIMBZ

pith:2021:ESXEIMBZGOP5I4IUVB3RKCTVLY

not attested not anchored not stored refs pending

Statistical limits for quantum networks with semiconductor entangled photon sources

Caspar Hopfmann, Eddy Patrick Rugeramigabo, Fei Ding, Frederik Benthin, Jingzhong Yang, Michael Zopf, Nand Lal Sharma, Oliver G. Schmidt, Pengji Li, Robert Keil, Tom Fandrich, Weijie Nie

arxiv:2109.06742 v2 · 2021-09-14 · quant-ph · cond-mat.mes-hall · cond-mat.mtrl-sci · 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{ESXEIMBZGOP5I4IUVB3RKCTVLY}

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	2026-07-05T04:40:00.116697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24ae443039339fd47114a877150a755e074fb3fd257c5210c3537b7f5808c831

Aliases

arxiv: 2109.06742 · arxiv_version: 2109.06742v2 · doi: 10.48550/arxiv.2109.06742 · pith_short_12: ESXEIMBZGOP5 · pith_short_16: ESXEIMBZGOP5I4IU · pith_short_8: ESXEIMBZ

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/ESXEIMBZGOP5I4IUVB3RKCTVLY \
  | 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: 24ae443039339fd47114a877150a755e074fb3fd257c5210c3537b7f5808c831

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8fc9eed2d12c4589580916c05e7b3266e42bfa281ed4cdc5ad865372b6ea3a6",
    "cross_cats_sorted": [
      "cond-mat.mes-hall",
      "cond-mat.mtrl-sci",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-09-14T14:57:50Z",
    "title_canon_sha256": "c400e2760c2aa736d3555f0f464001f6a7eadbfd2b5e09896e2ff97a77b74421"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.06742",
    "kind": "arxiv",
    "version": 2
  }
}