Pith Number

pith:U2UXZLOK

pith:2022:U2UXZLOKL5I4CUNGAQZA6NBNKL

not attested not anchored not stored refs pending

Long-distance transmon coupler with CZ gate fidelity above $99.8\%$

Adrian Auer, Alessandro Landra, Antti Veps\"al\"ainen, Brian Tarasinski, Caspar Ockeloen-Korppi, Chun Fai Chan, David Janzso, Eelis Takala, Eric Hyypp\"a, Fabian Marxer, Francesca Tosto, Jani Tuorila, Janne Kotilahti, Jari Rosti, Johannes Heinsoo, Joni Ikonen, Juha Hassel, Juho Hotari, Jukka R\"abin\"a, Jyrgen Luus, Kok Wai Chan, Kuan Yen Tan, Liuqi Yu, Lucien Belzane, Manish J. Thapa, Marko Sepp\"al\"a, Matti Partanen, Miha Papic, Miikka Koistinen, Mikko M\"ott\"onen, Mykhailo Savytskyi, Natalia Vorobeva, Olli Ahonen, Shan W. Jolin, Tianyi Li, Tuukka Hiltunen, Vasilii Sevriuk, Ville Bergholm, Wei Liu

arxiv:2208.09460 v2 · 2022-08-19 · 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{U2UXZLOKL5I4CUNGAQZA6NBNKL}

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	2026-07-05T08:56:10.977949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6a97cadca5f51c151a604320f342d52f4e4d0ef41a4220bcbf3b7fc658cd693

Aliases

arxiv: 2208.09460 · arxiv_version: 2208.09460v2 · doi: 10.48550/arxiv.2208.09460 · pith_short_12: U2UXZLOKL5I4 · pith_short_16: U2UXZLOKL5I4CUNG · pith_short_8: U2UXZLOK

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/U2UXZLOKL5I4CUNGAQZA6NBNKL \
  | 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: a6a97cadca5f51c151a604320f342d52f4e4d0ef41a4220bcbf3b7fc658cd693

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b002f7876b6e169f775b7478cc433da497140954f1b34a3c7b692e8f868f3dce",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-08-19T17:37:56Z",
    "title_canon_sha256": "29a914c583253361d9a868a3a89b0154c726462cc6a43720d417df8f940ec409"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.09460",
    "kind": "arxiv",
    "version": 2
  }
}