Pith Number

pith:RQOZ53TE

pith:2015:RQOZ53TEFUX7YUCUDOPETX3U5Y

not attested not anchored not stored refs pending

Combinatorial Constructions of Optimal $(m, n,4,2)$ Optical Orthogonal Signature Pattern Codes

Jingyuan Chen, Lijun Ji, Yun Li

arxiv:1511.09289 v2 · 2015-11-30 · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RQOZ53TEFUX7YUCUDOPETX3U5Y}

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	2026-05-18T01:04:04.131416Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c1d9eee642d2ffc50541b9e49df74ee0a9efee2b3229c91362027748b72b16c

Aliases

arxiv: 1511.09289 · arxiv_version: 1511.09289v2 · doi: 10.48550/arxiv.1511.09289 · pith_short_12: RQOZ53TEFUX7 · pith_short_16: RQOZ53TEFUX7YUCU · pith_short_8: RQOZ53TE

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/RQOZ53TEFUX7YUCUDOPETX3U5Y \
  | 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: 8c1d9eee642d2ffc50541b9e49df74ee0a9efee2b3229c91362027748b72b16c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec9ed2344b808994521cd05c6f3c7290b394b0ad4af5a12fa3226fc50ce01aad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2015-11-30T13:08:29Z",
    "title_canon_sha256": "849f05fa71f321a9e0ce20e5284b168c4dd0e18e72f7c62334ed6db1ab847efc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.09289",
    "kind": "arxiv",
    "version": 2
  }
}