Pith Number

pith:4EOKVY75

pith:2013:4EOKVY75FEWSZMHDY2BCTQ35QV

not attested not anchored not stored refs pending

An Improved Sub-Packetization Bound for Minimum Storage Regenerating Codes

Itzhak Tamo, Robert Calderbank, Sreechakra Goparaju

arxiv:1305.3498 v1 · 2013-05-15 · 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{4EOKVY75FEWSZMHDY2BCTQ35QV}

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	2026-05-18T03:25:35.652876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e11caae3fd292d2cb0e3c68229c37d8576164d2fcaa5b7df79a5b5730570ee7b

Aliases

arxiv: 1305.3498 · arxiv_version: 1305.3498v1 · doi: 10.48550/arxiv.1305.3498 · pith_short_12: 4EOKVY75FEWS · pith_short_16: 4EOKVY75FEWSZMHD · pith_short_8: 4EOKVY75

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/4EOKVY75FEWSZMHDY2BCTQ35QV \
  | 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: e11caae3fd292d2cb0e3c68229c37d8576164d2fcaa5b7df79a5b5730570ee7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "040978f52d739dfb996ac6a794761f0ac69960d3e82f53c07ddc935528e26357",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-05-15T14:40:37Z",
    "title_canon_sha256": "e3bb8b39159417d05aaaca1df0b5c3c5304304e012dd18e73a157516d2e9b1d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3498",
    "kind": "arxiv",
    "version": 1
  }
}