Pith Number

pith:I3Q3N2NI

pith:2017:I3Q3N2NIUTOZ25Y2KGPFOFLC7A

not attested not anchored not stored refs pending

New constructions of MDS codes with complementary duals

Bocong Chen, Hongwei Liu

arxiv:1702.07831 v1 · 2017-02-25 · 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{I3Q3N2NIUTOZ25Y2KGPFOFLC7A}

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	2026-05-18T00:49:56.948341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46e1b6e9a8a4dd9d771a519e571562f812ff284c3451a1fa436b43690dc67085

Aliases

arxiv: 1702.07831 · arxiv_version: 1702.07831v1 · doi: 10.48550/arxiv.1702.07831 · pith_short_12: I3Q3N2NIUTOZ · pith_short_16: I3Q3N2NIUTOZ25Y2 · pith_short_8: I3Q3N2NI

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/I3Q3N2NIUTOZ25Y2KGPFOFLC7A \
  | 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: 46e1b6e9a8a4dd9d771a519e571562f812ff284c3451a1fa436b43690dc67085

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f7bec98298821bf1542e633d62a57a77d3248793f3eb0ab0f0adef98a78719d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-02-25T03:48:40Z",
    "title_canon_sha256": "40b1a59bdfccd22a4ec8e0945db448c18754004b528fdc67d2702c5ba3f83817"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07831",
    "kind": "arxiv",
    "version": 1
  }
}