Pith Number

pith:V5OHPZEC

pith:2018:V5OHPZEC7B4Y4P77DMUNEISN7K

not attested not anchored not stored refs pending

Cooperative repair: Constructions of optimal MDS codes for all admissible parameters

Alexander Barg, Min Ye

arxiv:1801.09665 v4 · 2018-01-29 · 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{V5OHPZEC7B4Y4P77DMUNEISN7K}

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	2026-05-18T00:11:00.011237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af5c77e482f8798e3fff1b28d2224dfa8e58b02b3140539f3f1ba7a05ff9034c

Aliases

arxiv: 1801.09665 · arxiv_version: 1801.09665v4 · doi: 10.48550/arxiv.1801.09665 · pith_short_12: V5OHPZEC7B4Y · pith_short_16: V5OHPZEC7B4Y4P77 · pith_short_8: V5OHPZEC

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/V5OHPZEC7B4Y4P77DMUNEISN7K \
  | 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: af5c77e482f8798e3fff1b28d2224dfa8e58b02b3140539f3f1ba7a05ff9034c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8eef752a388f39460ee7a71b2c8f7f6989b4b488575093fe75b1d4fe36f819ca",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-01-29T18:47:36Z",
    "title_canon_sha256": "bd8e0153546662ff7af45522c97e505d7a08ce5ac0cb0935f2b10d49c87551d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.09665",
    "kind": "arxiv",
    "version": 4
  }
}