Pith Number

pith:7NPXTRW7

pith:2013:7NPXTRW7LRQQE4V3S7DYUEI7ZP

not attested not anchored not stored refs pending

On the Hardnesses of Several Quantum Decoding Problems

Chung-Chin Lu, Kao-Yueh Kuo

arxiv:1306.5173 v2 · 2013-06-21 · 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{7NPXTRW7LRQQE4V3S7DYUEI7ZP}

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	2026-05-18T03:18:42.024603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb5f79c6df5c610272bb97c78a111fcbfcec1785116fb5297867acd881eb7128

Aliases

arxiv: 1306.5173 · arxiv_version: 1306.5173v2 · doi: 10.48550/arxiv.1306.5173 · pith_short_12: 7NPXTRW7LRQQ · pith_short_16: 7NPXTRW7LRQQE4V3 · pith_short_8: 7NPXTRW7

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/7NPXTRW7LRQQE4V3S7DYUEI7ZP \
  | 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: fb5f79c6df5c610272bb97c78a111fcbfcec1785116fb5297867acd881eb7128

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82f0d0bc343b50913021d9213e0da23393fb3cb49e949efc138f64c954835b7f",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-06-21T15:32:32Z",
    "title_canon_sha256": "51f95b5f352f5460288b05189b6bb60fa64d291fa2ae9b5029892132a198d79f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.5173",
    "kind": "arxiv",
    "version": 2
  }
}