Pith Number

pith:VX5D3WMU

pith:2007:VX5D3WMU3NE2ABZUDQ24DUJBBX

not attested not anchored not stored refs pending

Noncoherent Low-Decoding-Complexity Space-Time Codes for Wireless Relay Networks

B. Sundar Rajan, G. Susinder Rajan

arxiv:0704.2511 v1 · 2007-04-19 · 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{VX5D3WMU3NE2ABZUDQ24DUJBBX}

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	2026-05-18T00:58:26.223602Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adfa3dd994db49a007341c35c1d1210dfd35548e38d40e9b2095297b2656d47f

Aliases

arxiv: 0704.2511 · arxiv_version: 0704.2511v1 · doi: 10.48550/arxiv.0704.2511 · pith_short_12: VX5D3WMU3NE2 · pith_short_16: VX5D3WMU3NE2ABZU · pith_short_8: VX5D3WMU

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/VX5D3WMU3NE2ABZUDQ24DUJBBX \
  | 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: adfa3dd994db49a007341c35c1d1210dfd35548e38d40e9b2095297b2656d47f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d24414f2176ced557ee1aa699b439243787362ee9c4468e9215ba6539fc04fa",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "",
    "primary_cat": "cs.IT",
    "submitted_at": "2007-04-19T11:28:49Z",
    "title_canon_sha256": "12d866edd8b9bb000bb69606cd9414bb6c9bc197f4b82b602da7a9323270c90e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.2511",
    "kind": "arxiv",
    "version": 1
  }
}