Pith Number

pith:K5U4UHEC

pith:2014:K5U4UHECOLANBRPPRDBKSYLJOS

not attested not anchored not stored refs pending

An Integer Programming Based Bound for Locally Repairable Codes

Anyu Wang, Zhifang Zhang

arxiv:1409.0952 v1 · 2014-09-03 · 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{K5U4UHECOLANBRPPRDBKSYLJOS}

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	2026-05-18T02:43:44.696885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5769ca1c8272c0d0c5ef88c2a96169748205a0eb6fde5a264eb8873599daebc3

Aliases

arxiv: 1409.0952 · arxiv_version: 1409.0952v1 · doi: 10.48550/arxiv.1409.0952 · pith_short_12: K5U4UHECOLAN · pith_short_16: K5U4UHECOLANBRPP · pith_short_8: K5U4UHEC

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/K5U4UHECOLANBRPPRDBKSYLJOS \
  | 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: 5769ca1c8272c0d0c5ef88c2a96169748205a0eb6fde5a264eb8873599daebc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "431f174cccf101929e9ddcb7d0e8cfd4536bb9710032a334d0b4273418f9e49d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-09-03T05:21:35Z",
    "title_canon_sha256": "59b7bbc55788f62da574afcb2042012ffc1eca76bed83b40d1d37f6e39bd3d4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.0952",
    "kind": "arxiv",
    "version": 1
  }
}