Pith Number

pith:6O6HJQDJ

pith:2018:6O6HJQDJMZEN44A4XN2LLVRXEN

not attested not anchored not stored refs pending

Code-Frequency Block Group Coding for Anti-Spoofing Pilot Authentication in Multi-Antenna OFDM Systems

Dongyang Xu, James A. Ritcey, Pinyi Ren, Yichen Wang

arxiv:1801.07356 v1 · 2018-01-23 · cs.IT · cs.CR · eess.SP · 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{6O6HJQDJMZEN44A4XN2LLVRXEN}

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	2026-05-18T00:25:13.037762Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3bc74c0696648de701cbb74b5d637236abd96f6fcce05e15cb7677478f3da5f

Aliases

arxiv: 1801.07356 · arxiv_version: 1801.07356v1 · doi: 10.48550/arxiv.1801.07356 · pith_short_12: 6O6HJQDJMZEN · pith_short_16: 6O6HJQDJMZEN44A4 · pith_short_8: 6O6HJQDJ

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/6O6HJQDJMZEN44A4XN2LLVRXEN \
  | 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: f3bc74c0696648de701cbb74b5d637236abd96f6fcce05e15cb7677478f3da5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4aae497e0cba369fa9b67e39d172306921b1b917c2063d852316a9682fc9aee",
    "cross_cats_sorted": [
      "cs.CR",
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-01-23T00:14:46Z",
    "title_canon_sha256": "efaa0ac232d80459df39ade652117c8dc3514380e86f03d196646673bc797eb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07356",
    "kind": "arxiv",
    "version": 1
  }
}