Pith Number

pith:QWYDOWS2

pith:2013:QWYDOWS2DFOMIOWHDUJ6VDEPKF

not attested not anchored not stored refs pending

Balanced Sparsest Generator Matrices for MDS Codes

Chau Yuen, Son Hoang Dau, Wentu Song, Zheng Dong

arxiv:1301.5108 v1 · 2013-01-22 · 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{QWYDOWS2DFOMIOWHDUJ6VDEPKF}

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.

Cited by

1 paper in Pith

Probability of super-regular matrices and MDS codes over finite fields

Receipt and verification

First computed	2026-05-18T03:35:53.026895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85b0375a5a195cc43ac71d13ea8c8f516b8fcd200afc17d05b4dc8a3a320e858

Aliases

arxiv: 1301.5108 · arxiv_version: 1301.5108v1 · doi: 10.48550/arxiv.1301.5108 · pith_short_12: QWYDOWS2DFOM · pith_short_16: QWYDOWS2DFOMIOWH · pith_short_8: QWYDOWS2

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/QWYDOWS2DFOMIOWHDUJ6VDEPKF \
  | 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: 85b0375a5a195cc43ac71d13ea8c8f516b8fcd200afc17d05b4dc8a3a320e858

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50035c515bfbdd6e6e3b35eef2752bb4877fdd8f8c3df5b6d1fffe747bac8a57",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-01-22T08:35:43Z",
    "title_canon_sha256": "f47bef3bf2016252a46ad7fa00148e5e42bf478199a25a5668cc8865b94e308c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.5108",
    "kind": "arxiv",
    "version": 1
  }
}