Pith Number

pith:WBQNCEDH

pith:2011:WBQNCEDHHOZFN4FX47ZFGKIPX2

not attested not anchored not stored refs pending

C-Codes: Cyclic Lowest-Density MDS Array Codes Constructed Using Starters for RAID 6

Jiwu Shu, Mingqiang Li

arxiv:1104.2547 v5 · 2011-04-13 · cs.IT · cs.DM · math.CO · 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{WBQNCEDHHOZFN4FX47ZFGKIPX2}

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	2026-05-18T02:22:09.344593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b060d110673bb256f0b7e7f253290fbe8a634d25f0b453f81f9276bc633efb3b

Aliases

arxiv: 1104.2547 · arxiv_version: 1104.2547v5 · doi: 10.48550/arxiv.1104.2547 · pith_short_12: WBQNCEDHHOZF · pith_short_16: WBQNCEDHHOZFN4FX · pith_short_8: WBQNCEDH

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/WBQNCEDHHOZFN4FX47ZFGKIPX2 \
  | 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: b060d110673bb256f0b7e7f253290fbe8a634d25f0b453f81f9276bc633efb3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fd6c07682b5baff3aeb1aa827facf6eea94466993ed655605156be5aa403294",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-04-13T16:51:36Z",
    "title_canon_sha256": "d5249de39deb29234f8001ca22f176110ed05bad28178a44cfd5ca4c74c973e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2547",
    "kind": "arxiv",
    "version": 5
  }
}