Pith Number

pith:QYFX3LTK

pith:2026:QYFX3LTKANL4ASXJH2BGWYLUFR

not attested not anchored not stored refs pending

Picosecond-resolved entanglement distribution over an urban free-space channel

Ailton Garcia Jr., Alessandro Laneve, Armando Rastelli, Christian Weidinger, Fabio Sciarrino, Fabrizio Cienzo, Giorgia Grossi, Giuseppe Ronco, Henning Weier, Ievgen Brytavskyi, Markus Wiener, Mattia Beccaceci, Michele B. Rota, Nicol\`o Spagnolo, Paolo Barigelli, Philip Menz, Rinaldo Trotta, Saimon Filipe Covre da Silva, Santiago Gomez, Thomas Oberleitner, Tobias M. Krieger

arxiv:2607.21093 v1 · 2026-07-23 · quant-ph · 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{QYFX3LTKANL4ASXJH2BGWYLUFR}

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	2026-07-24T01:23:51.584260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

860b7dae6a0357c04ae93e826b61742c79d978383bb4283c6a18c97ff8782277

Aliases

arxiv: 2607.21093 · arxiv_version: 2607.21093v1 · doi: 10.48550/arxiv.2607.21093 · pith_short_12: QYFX3LTKANL4 · pith_short_16: QYFX3LTKANL4ASXJ · pith_short_8: QYFX3LTK

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/QYFX3LTKANL4ASXJH2BGWYLUFR \
  | 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: 860b7dae6a0357c04ae93e826b61742c79d978383bb4283c6a18c97ff8782277

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2702d05609712af064dae2a7cd283e6cd0e0cbee2e9e42ee3995fb397d1fdcb7",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-23T09:24:55Z",
    "title_canon_sha256": "5a5cebd39e94369833bdee83d3cda2eefc8ea6c1f1898d809c889421e3b4199b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.21093",
    "kind": "arxiv",
    "version": 1
  }
}