Pith Number

pith:E4TY45ZP

pith:2015:E4TY45ZPS2IWOEDET3J5MUYT6U

not attested not anchored not stored refs pending

On the Placement Delivery Array Design in Centralized Coded Caching Scheme

Minquan Cheng, Qifa Yan, Qingchun Chen, Xiaohu Tang

arxiv:1510.05064 v3 · 2015-10-17 · 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{E4TY45ZPS2IWOEDET3J5MUYT6U}

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	2026-05-18T00:32:26.232001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27278e772f96916710649ed3d65313f5095e93ea49b29dc5bb3cc9f908f5a835

Aliases

arxiv: 1510.05064 · arxiv_version: 1510.05064v3 · doi: 10.48550/arxiv.1510.05064 · pith_short_12: E4TY45ZPS2IW · pith_short_16: E4TY45ZPS2IWOEDE · pith_short_8: E4TY45ZP

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/E4TY45ZPS2IWOEDET3J5MUYT6U \
  | 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: 27278e772f96916710649ed3d65313f5095e93ea49b29dc5bb3cc9f908f5a835

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9386f1d024e1f1dd6f76d22818d9e5f280f67b934c858117acf876221bc87fc",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-10-17T02:40:19Z",
    "title_canon_sha256": "842ecc22d175b728bfa2f9a0438dc4d137480966067a4a199318dc34b56cf32e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.05064",
    "kind": "arxiv",
    "version": 3
  }
}