Pith Number

pith:SNCINQP2

pith:2009:SNCINQP2NY4GCEFHMDQPLQGIKR

not attested not anchored not stored refs pending

A simple approach to approximate quantum error correction based on the transpose channel

Hui Khoon Ng (Caltech), Prabha Mandayam (Caltech)

arxiv:0909.0931 v2 · 2009-09-04 · 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{SNCINQP2NY4GCEFHMDQPLQGIKR}

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	2026-05-18T03:23:57.864427Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

934486c1fa6e386110a760e0f5c0c8547cafcdcc28f5a230f56d56c40ac3e1f6

Aliases

arxiv: 0909.0931 · arxiv_version: 0909.0931v2 · doi: 10.48550/arxiv.0909.0931 · pith_short_12: SNCINQP2NY4G · pith_short_16: SNCINQP2NY4GCEFH · pith_short_8: SNCINQP2

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/SNCINQP2NY4GCEFHMDQPLQGIKR \
  | 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: 934486c1fa6e386110a760e0f5c0c8547cafcdcc28f5a230f56d56c40ac3e1f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48060e187fbc40dea79501cadc851ecdfd727e0c1c441241dc2812f20c629770",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-09-04T18:10:51Z",
    "title_canon_sha256": "65a85dad5fd142f7b5a17b4aceb5b9bed290c485ef6e07a6525689c145509539"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0931",
    "kind": "arxiv",
    "version": 2
  }
}