Pith Number

pith:2O2RC7C7

pith:2024:2O2RC7C7MKGANMKVYSO7UCCCJH

not attested not anchored not stored refs pending

Optimal Placement Delivery Arrays from $t$-Designs with Application to Hierarchical Coded Caching

B. Sundar Rajan, Rashid Ummer N.T.

arxiv:2402.07188 v2 · 2024-02-11 · 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{2O2RC7C7MKGANMKVYSO7UCCCJH}

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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.

Cited by

1 paper in Pith

On Hierarchical Coded Caching with Offline Users

Receipt and verification

First computed	2026-07-05T07:49:17.894937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3b5117c5f628c06b155c49dfa084249e8319ec1086543a4b760b982b193772d

Aliases

arxiv: 2402.07188 · arxiv_version: 2402.07188v2 · doi: 10.48550/arxiv.2402.07188 · pith_short_12: 2O2RC7C7MKGA · pith_short_16: 2O2RC7C7MKGANMKV · pith_short_8: 2O2RC7C7

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/2O2RC7C7MKGANMKVYSO7UCCCJH \
  | 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: d3b5117c5f628c06b155c49dfa084249e8319ec1086543a4b760b982b193772d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c16f65d6c08357b6b86bb2ef4755f6984abfb95f53fdc59e081bf34d3ef63c10",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2024-02-11T12:51:38Z",
    "title_canon_sha256": "bc778db9b2a7877ebee85c6a853feeafd576dd3c367c191b1b6456a292770e27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.07188",
    "kind": "arxiv",
    "version": 2
  }
}