Pith Number

pith:5FSEUEGN

pith:2021:5FSEUEGNEAEYYKYUPYSGKC7JLU

not attested not anchored not stored refs pending

Design of Placement Delivery Arrays for Coded Caching with Small Subpacketizations and Flexible Memory Sizes

Congduan Li, Li Chen, Minquan Cheng, Xianzhang Wu

arxiv:2106.00480 v2 · 2021-06-01 · 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{5FSEUEGNEAEYYKYUPYSGKC7JLU}

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	2026-07-05T03:46:02.342676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9644a10cd20098c2b147e24650be95d06441c32e3d28d58e94bcb3ff52e8244

Aliases

arxiv: 2106.00480 · arxiv_version: 2106.00480v2 · doi: 10.48550/arxiv.2106.00480 · pith_short_12: 5FSEUEGNEAEY · pith_short_16: 5FSEUEGNEAEYYKYU · pith_short_8: 5FSEUEGN

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/5FSEUEGNEAEYYKYUPYSGKC7JLU \
  | 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: e9644a10cd20098c2b147e24650be95d06441c32e3d28d58e94bcb3ff52e8244

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f08a5aef55084b1d8cd1ad9ddaaf8049ac2b4c6f89dda4933091c64c49aaaca6",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2021-06-01T13:34:00Z",
    "title_canon_sha256": "39b2bab8b0068e37b5799f69512caa5550f9d1de05ce1cec677d6fd8cf62ba01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.00480",
    "kind": "arxiv",
    "version": 2
  }
}