Pith Number

pith:NXRK3YRO

pith:2014:NXRK3YRONXPE6LEFF6Q3VBF6EX

not attested not anchored not stored refs pending

Iterative Detection and LDPC Decoding Algorithms for MIMO Systems in Block-Fading Channels

A. G. D. Uchoa, C. T. Healy, P. Li, R. C. de Lamare

arxiv:1404.1981 v1 · 2014-04-08 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NXRK3YRONXPE6LEFF6Q3VBF6EX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:54:38.897610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6de2ade22e6dde4f2c852fa1ba84be25d45fc5a417b543c8e128d1b1f120db13

Aliases

arxiv: 1404.1981 · arxiv_version: 1404.1981v1 · doi: 10.48550/arxiv.1404.1981 · pith_short_12: NXRK3YRONXPE · pith_short_16: NXRK3YRONXPE6LEF · pith_short_8: NXRK3YRO

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/NXRK3YRONXPE6LEFF6Q3VBF6EX \
  | 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: 6de2ade22e6dde4f2c852fa1ba84be25d45fc5a417b543c8e128d1b1f120db13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e5f2d77ef53bdc6bebe2556b85932394391289396f7c90cf538be6cc9e9ee0a",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-04-08T01:19:00Z",
    "title_canon_sha256": "8281e9ee9275b726898a274257e14824778cceb5a0aae65562639cf1596542e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.1981",
    "kind": "arxiv",
    "version": 1
  }
}