Pith Number

pith:VITULVUQ

pith:2025:VITULVUQLCRCQZMFJCH7DFZNCE

not attested not anchored not stored refs pending

Semidefinite lower bounds for covering codes

Dion Gijswijt, Sven Polak

arxiv:2504.01932 v2 · 2025-04-02 · math.CO · cs.IT · math.IT · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VITULVUQLCRCQZMFJCH7DFZNCE}

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

Formal Foundations and Proof-Carrying Certificates for q-ary Covering Codes in Lean 4

Receipt and verification

First computed	2026-06-23T01:11:54.903899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa2745d69058a2286585488ff1972d1127bfe9824e310f32a2dec0dcfbbb4bee

Aliases

arxiv: 2504.01932 · arxiv_version: 2504.01932v2 · doi: 10.48550/arxiv.2504.01932 · pith_short_12: VITULVUQLCRC · pith_short_16: VITULVUQLCRCQZMF · pith_short_8: VITULVUQ

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/VITULVUQLCRCQZMFJCH7DFZNCE \
  | 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: aa2745d69058a2286585488ff1972d1127bfe9824e310f32a2dec0dcfbbb4bee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d786aceda435f4381ef0113817aee44a72cf6e796c5b17e776b630081c067571",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-04-02T17:42:03Z",
    "title_canon_sha256": "e7a44a73614a07dcd68d21e8735bb60bff56c0a570539361b7f9e1b75ee97b00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.01932",
    "kind": "arxiv",
    "version": 2
  }
}