Pith Number

pith:ERPMRKRR

pith:2015:ERPMRKRR2LEAGNRAXBKK2SXKSV

not attested not anchored not stored refs pending

Optimal Linear and Cyclic Locally Repairable Codes over Small Fields

Alexander Zeh, Eitan Yaakobi

arxiv:1502.06809 v1 · 2015-02-24 · cs.IT · cs.NI · math.CO · 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{ERPMRKRR2LEAGNRAXBKK2SXKSV}

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	2026-05-18T00:58:11.037867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

245ec8aa31d2c8033620b854ad4aea9572212305a66ef877701135c6cdca4532

Aliases

arxiv: 1502.06809 · arxiv_version: 1502.06809v1 · doi: 10.48550/arxiv.1502.06809 · pith_short_12: ERPMRKRR2LEA · pith_short_16: ERPMRKRR2LEAGNRA · pith_short_8: ERPMRKRR

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/ERPMRKRR2LEAGNRAXBKK2SXKSV \
  | 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: 245ec8aa31d2c8033620b854ad4aea9572212305a66ef877701135c6cdca4532

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff9327044849a8c9924cd4d2fabdb5eb264bb9b9637808c0a8e90117018f9603",
    "cross_cats_sorted": [
      "cs.NI",
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-02-24T13:43:42Z",
    "title_canon_sha256": "963100ebfa160a6788a31bac83623470035ce61a3249a30c268277904e1273b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.06809",
    "kind": "arxiv",
    "version": 1
  }
}