Pith Number

pith:UGDYI7VD

pith:2012:UGDYI7VDEGVWOODC5W4SA3IHMN

not attested not anchored not stored refs pending

On Designs of Full Diversity Space-Time Block Codes for Two-User MIMO Interference Channels

Long Shi, Wei Zhang, Xiang-Gen Xia

arxiv:1209.5907 v1 · 2012-09-26 · 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{UGDYI7VDEGVWOODC5W4SA3IHMN}

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	2026-05-18T03:44:45.967659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a187847ea321ab673862edb9206d0763452024b429b6edb7d9538e6b60ad1816

Aliases

arxiv: 1209.5907 · arxiv_version: 1209.5907v1 · doi: 10.48550/arxiv.1209.5907 · pith_short_12: UGDYI7VDEGVW · pith_short_16: UGDYI7VDEGVWOODC · pith_short_8: UGDYI7VD

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/UGDYI7VDEGVWOODC5W4SA3IHMN \
  | 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: a187847ea321ab673862edb9206d0763452024b429b6edb7d9538e6b60ad1816

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e5f38215ce7a9dcc6fc7f74350d54f0518551b6887ab04743692cc3b84689c6",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-09-26T11:51:43Z",
    "title_canon_sha256": "fbbd6f14195ca3465d48ee5e3ed3e1124d29c6b74e2859cfcaf229e477fe0f75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.5907",
    "kind": "arxiv",
    "version": 1
  }
}