Pith Number

pith:LJJHCQRV

pith:2026:LJJHCQRVI2TG2E6DXJXBJOX4BI

not attested not anchored not stored refs pending

Untangling QLDPC Codes with Biased Noise Ancilla

Kathleen Chang, Runjiang Bi, Shruti Puri

arxiv:2606.30592 v1 · 2026-06-29 · 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{LJJHCQRVI2TG2E6DXJXBJOX4BI}

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	2026-06-30T02:18:21.930559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a5271423546a66d13c3ba6e14bafc0a1e0980777c1549eeb415ccad08486fe4

Aliases

arxiv: 2606.30592 · arxiv_version: 2606.30592v1 · doi: 10.48550/arxiv.2606.30592 · pith_short_12: LJJHCQRVI2TG · pith_short_16: LJJHCQRVI2TG2E6D · pith_short_8: LJJHCQRV

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/LJJHCQRVI2TG2E6DXJXBJOX4BI \
  | 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: 5a5271423546a66d13c3ba6e14bafc0a1e0980777c1549eeb415ccad08486fe4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a771709d1a15235fd70cd7205d5b5e586b03368a7884c02de524aecb4a3743d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-06-29T17:34:21Z",
    "title_canon_sha256": "74f9c4d26f2422cc93f573a303d512a1eeedf369333471f2177aafc30ae4e15c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.30592",
    "kind": "arxiv",
    "version": 1
  }
}