Pith Number

pith:7LM5E7YZ

pith:2014:7LM5E7YZECGYWOHO64GRLQRGLB

not attested not anchored not stored refs pending

Multichannel group sparsity methods for compressive channel estimation in doubly selective multicarrier MIMO systems (extended version)

Daniel Eiwen, Franz Hlawatsch, Georg Tauboeck, Hans Georg Feichtinger

arxiv:1407.3474 v2 · 2014-07-13 · cs.IT · math.IT

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7LM5E7YZECGYWOHO64GRLQRGLB}

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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	2026-05-18T01:10:11.531928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fad9d27f19208d8b38eef70d15c2265859540f4ea2ad2cb91fb9a3ae13e0c290

Aliases

arxiv: 1407.3474 · arxiv_version: 1407.3474v2 · doi: 10.48550/arxiv.1407.3474 · pith_short_12: 7LM5E7YZECGY · pith_short_16: 7LM5E7YZECGYWOHO · pith_short_8: 7LM5E7YZ

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/7LM5E7YZECGYWOHO64GRLQRGLB \
  | 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: fad9d27f19208d8b38eef70d15c2265859540f4ea2ad2cb91fb9a3ae13e0c290

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "082b47fe49a19996131126f0d0bd250f826fefa3a10a862477f21492468cd6e0",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-07-13T14:54:48Z",
    "title_canon_sha256": "476dfd11d9777b0f1e09474352af118abfcd529426ff8d8588b8bcee6007fb68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.3474",
    "kind": "arxiv",
    "version": 2
  }
}