Pith Number

pith:L4XYSXZQ

pith:2013:L4XYSXZQCBBBPJHYVTNNGSXYT2

not attested not anchored not stored refs pending

An Upper Bound On the Size of Locally Recoverable Codes

Arya Mazumdar, Viveck Cadambe

arxiv:1308.3200 v2 · 2013-08-14 · 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{L4XYSXZQCBBBPJHYVTNNGSXYT2}

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	2026-05-18T00:58:42.084986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f2f895f30104217a4f8acdad34af89e80b55a0cc68b40929f86617c90738c10

Aliases

arxiv: 1308.3200 · arxiv_version: 1308.3200v2 · doi: 10.48550/arxiv.1308.3200 · pith_short_12: L4XYSXZQCBBB · pith_short_16: L4XYSXZQCBBBPJHY · pith_short_8: L4XYSXZQ

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/L4XYSXZQCBBBPJHYVTNNGSXYT2 \
  | 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: 5f2f895f30104217a4f8acdad34af89e80b55a0cc68b40929f86617c90738c10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae292a50edd1cc5903e63f9f81a4c5f6f3918e77c77866feb1e6523196d39a89",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-08-14T18:25:32Z",
    "title_canon_sha256": "0de8ac75e6b64e860a7acc499c343a5cc5ce85794c0e3538d5c17836b7ca088a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.3200",
    "kind": "arxiv",
    "version": 2
  }
}