Pith Number

pith:AQ6RUNXJ

pith:2009:AQ6RUNXJDDO6P7YIYMOPUT6N5U

not attested not anchored not stored refs pending

On $[[n,n-4,3]]_{q}$ Quantum MDS Codes for odd prime power $q$

Ruihu Li, Zongben Xu

arxiv:0906.2509 v1 · 2009-06-14 · 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{AQ6RUNXJDDO6P7YIYMOPUT6N5U}

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	2026-05-18T02:13:20.317715Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

043d1a36e918dde7ff08c31cfa4fcded12571910ce0c4955473e36d51a3236d2

Aliases

arxiv: 0906.2509 · arxiv_version: 0906.2509v1 · doi: 10.48550/arxiv.0906.2509 · pith_short_12: AQ6RUNXJDDO6 · pith_short_16: AQ6RUNXJDDO6P7YI · pith_short_8: AQ6RUNXJ

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/AQ6RUNXJDDO6P7YIYMOPUT6N5U \
  | 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: 043d1a36e918dde7ff08c31cfa4fcded12571910ce0c4955473e36d51a3236d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9054045af6ee14e2b55df12c09b587f9e098a0874721d4ef8309b2b4c4ac436",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-06-14T04:11:25Z",
    "title_canon_sha256": "a64aea06bef4a42108d3c8955a5edd279a890096e234e6882a24e54138b932dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2509",
    "kind": "arxiv",
    "version": 1
  }
}