Pith Number

pith:GAYWSO5J

pith:2018:GAYWSO5JKI3MDG2LDBETQESGXI

not attested not anchored not stored refs pending

On Optimal Locally Repairable Codes with Super-Linear Length

Han Cai, Moshe Schwartz, Xiaohu Tang, Ying Miao

arxiv:1812.11942 v4 · 2018-12-31 · 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{GAYWSO5JKI3MDG2LDBETQESGXI}

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	2026-05-17T23:49:02.374360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3031693ba95236c19b4b1849381246ba3884e5972fa0e4b05cd062f8aa2c9012

Aliases

arxiv: 1812.11942 · arxiv_version: 1812.11942v4 · doi: 10.48550/arxiv.1812.11942 · pith_short_12: GAYWSO5JKI3M · pith_short_16: GAYWSO5JKI3MDG2L · pith_short_8: GAYWSO5J

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/GAYWSO5JKI3MDG2LDBETQESGXI \
  | 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: 3031693ba95236c19b4b1849381246ba3884e5972fa0e4b05cd062f8aa2c9012

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21c04afd283a8e0d52d5b2ea28b000759dcef58bf0c8fd056e554638a2a09208",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-12-31T18:26:24Z",
    "title_canon_sha256": "070b663dc3e2a2623fd52f5efbc438444644fd0ad6b584f0da02ed4390472461"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.11942",
    "kind": "arxiv",
    "version": 4
  }
}