Pith Number

pith:SOE6XKFP

pith:2019:SOE6XKFPLPJPTU6QVCJ7BJPGMX

not attested not anchored not stored refs pending

Frequency-Domain Time-Reversal Precoding in Wideband MISO OFDM Communication Systems

Fran\c{c}ois Horlin, Jean-Fran\c{c}ois Determe, J\'er\^ome Louveaux, Mathieu Van Eeckhaute, Philippe De Doncker, Trung-Hien Nguyen

arxiv:1904.10727 v1 · 2019-04-24 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SOE6XKFPLPJPTU6QVCJ7BJPGMX}

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	2026-05-17T23:47:50.172113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9389eba8af5bd2f9d3d0a893f0a5e665ff1aff892e4a9353250e04641fae5b21

Aliases

arxiv: 1904.10727 · arxiv_version: 1904.10727v1 · doi: 10.48550/arxiv.1904.10727 · pith_short_12: SOE6XKFPLPJP · pith_short_16: SOE6XKFPLPJPTU6Q · pith_short_8: SOE6XKFP

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/SOE6XKFPLPJPTU6QVCJ7BJPGMX \
  | 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: 9389eba8af5bd2f9d3d0a893f0a5e665ff1aff892e4a9353250e04641fae5b21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdac53df8b8d2b53ea23f0158c90a0d9358c4f49dc02ef237e879adbf4b424d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-04-24T10:22:26Z",
    "title_canon_sha256": "f19b4aeddd39b6a1c559419f3ddeced7b185fb650cfcaaa71145821821508133"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.10727",
    "kind": "arxiv",
    "version": 1
  }
}