Pith Number

pith:QAVSTCHH

pith:2013:QAVSTCHHNUNGDB3VWAIN4SW3ZS

not attested not anchored not stored refs pending

Family of Finite Geometry Low-Density Parity-Check Codes for Quantum Key Expansion

Kung-Chuan Hsu, Todd A. Brun

arxiv:1303.1760 v3 · 2013-03-07 · quant-ph · cs.IT · math.IT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QAVSTCHHNUNGDB3VWAIN4SW3ZS}

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	2026-05-18T03:19:58.973628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

802b2988e76d1a618775b010de4adbccb668ebf45b8b390335da1882ac434da1

Aliases

arxiv: 1303.1760 · arxiv_version: 1303.1760v3 · doi: 10.48550/arxiv.1303.1760 · pith_short_12: QAVSTCHHNUNG · pith_short_16: QAVSTCHHNUNGDB3V · pith_short_8: QAVSTCHH

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/QAVSTCHHNUNGDB3VWAIN4SW3ZS \
  | 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: 802b2988e76d1a618775b010de4adbccb668ebf45b8b390335da1882ac434da1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74f8e7950b57b685409ad0ab9fb7c08b879d1d615f878d7b9bf70059e27d203b",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-03-07T17:32:53Z",
    "title_canon_sha256": "258df2f7a9fb16725907e2afb0712b0ccd1c09cce0e81ca54a36f21a483c50e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.1760",
    "kind": "arxiv",
    "version": 3
  }
}