Pith Number

pith:R66HMHGO

pith:2026:R66HMHGOXJIDXXWEXHG3Y5XK75

not attested not anchored not stored refs pending

MDS and NMDS Codes from the Extended Twisted Generalized Reed-Solomon Codes

Tongjiang Yan, Yanli Wang, Yanxin Chen

arxiv:2605.23329 v1 · 2026-05-22 · 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{R66HMHGOXJIDXXWEXHG3Y5XK75}

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	2026-05-25T02:01:49.216836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fbc761cceba503bdec4b9cdbc76eaff78815eea1de20375663b2bab5cf624bf

Aliases

arxiv: 2605.23329 · arxiv_version: 2605.23329v1 · doi: 10.48550/arxiv.2605.23329 · pith_short_12: R66HMHGOXJID · pith_short_16: R66HMHGOXJIDXXWE · pith_short_8: R66HMHGO

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/R66HMHGOXJIDXXWEXHG3Y5XK75 \
  | 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: 8fbc761cceba503bdec4b9cdbc76eaff78815eea1de20375663b2bab5cf624bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9adc2dd36ced13f1cf521b302a5026cd1f0f4ffca8906133c87ce3af8d70f4b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2026-05-22T07:44:33Z",
    "title_canon_sha256": "71db9e76721de112941b3e5066b8d633c119ef196dbc529e60c4439b3e284b69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.23329",
    "kind": "arxiv",
    "version": 1
  }
}