Pith Number

pith:GI6SG6XN

pith:2016:GI6SG6XNALKWWXY345FEUMRKHJ

not attested not anchored not stored refs pending

The Optimal Placement Delivery Arrays

Haitao Cao, Jing Jiang, Minquan Cheng, Qifa Yan, Xiaohu Tang

arxiv:1611.04213 v2 · 2016-11-14 · 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{GI6SG6XNALKWWXY345FEUMRKHJ}

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	2026-05-18T00:53:11.995412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

323d237aed02d56b5f1be74a4a322a3a559d99886d76f7675945063dc393a001

Aliases

arxiv: 1611.04213 · arxiv_version: 1611.04213v2 · doi: 10.48550/arxiv.1611.04213 · pith_short_12: GI6SG6XNALKW · pith_short_16: GI6SG6XNALKWWXY3 · pith_short_8: GI6SG6XN

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/GI6SG6XNALKWWXY345FEUMRKHJ \
  | 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: 323d237aed02d56b5f1be74a4a322a3a559d99886d76f7675945063dc393a001

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "acf31da542cd85b52686cf9f1c68532abb93f571e8e4badefa86f6d752bda675",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-11-14T00:25:01Z",
    "title_canon_sha256": "9e76c264516410737e6589a0ff7c25c10c6e96108dbb44bede410cda356ba6e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.04213",
    "kind": "arxiv",
    "version": 2
  }
}