Pith Number

pith:Q7QNOA6Z

pith:2015:Q7QNOA6ZLSMICVZ6OQMJHUPES7

not attested not anchored not stored refs pending

Full Large-Scale Diversity Space Codes for MIMO Optical Wireless Communications

Hong-Yi Yu, Jian-Kang Zhang, Jin-Long Wang, Tao Wang, Yan-Yu Zhang, Yi-Jun Zhu

arxiv:1504.04725 v1 · 2015-04-18 · 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{Q7QNOA6ZLSMICVZ6OQMJHUPES7}

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	2026-05-18T02:18:24.990929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87e0d703d95c9881573e741893d1e497f872e2c5d507932737d069ca41d73526

Aliases

arxiv: 1504.04725 · arxiv_version: 1504.04725v1 · doi: 10.48550/arxiv.1504.04725 · pith_short_12: Q7QNOA6ZLSMI · pith_short_16: Q7QNOA6ZLSMICVZ6 · pith_short_8: Q7QNOA6Z

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/Q7QNOA6ZLSMICVZ6OQMJHUPES7 \
  | 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: 87e0d703d95c9881573e741893d1e497f872e2c5d507932737d069ca41d73526

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9c805f8eb4e4863c37327d6d099b137f7be4c051f9a5839c4651e7db0f3920a",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-04-18T14:41:56Z",
    "title_canon_sha256": "f750cb4449e9e5ceff99246dc8f6bfba133dbc88f5b5d59f8dc543bd91dfcc6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04725",
    "kind": "arxiv",
    "version": 1
  }
}