Pith Number

pith:PSOZ7L4V

pith:2026:PSOZ7L4VY3BZ3AFYCKHMYI2CO5

not attested not anchored not stored refs pending

Barbell Codes: qLDPC Codes for Superconducting Quantum Hardware

Fedor \v{S}imkovic IV, Florian Vigneau, Francisco Revson Fernandes Pereira, Hsiang-Sheng Ku, Martin Leib, Pedro Parrado-Rodr\'iguez, Shin Ho Choe, Vincent Steffan

arxiv:2606.06062 v1 · 2026-06-04 · 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{PSOZ7L4VY3BZ3AFYCKHMYI2CO5}

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	2026-06-05T01:15:31.865023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c9d9faf95c6c39d80b8128ecc23427762ac56ce66865474480bb99ddf6dfde0

Aliases

arxiv: 2606.06062 · arxiv_version: 2606.06062v1 · doi: 10.48550/arxiv.2606.06062 · pith_short_12: PSOZ7L4VY3BZ · pith_short_16: PSOZ7L4VY3BZ3AFY · pith_short_8: PSOZ7L4V

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/PSOZ7L4VY3BZ3AFYCKHMYI2CO5 \
  | 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: 7c9d9faf95c6c39d80b8128ecc23427762ac56ce66865474480bb99ddf6dfde0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f4956d45705bed5788f52b803cd53f2ba823c399fb052857682ef1cef5bf4f5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-06-04T12:01:24Z",
    "title_canon_sha256": "90cf43c993013d83825be49f06637aff313eb5ca41cb978bf81f962c6cde3f85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.06062",
    "kind": "arxiv",
    "version": 1
  }
}