Pith Number

pith:IJ3HVJGS

pith:2011:IJ3HVJGSNTFCR6CUNV73YUNGYM

not attested not anchored not stored refs pending

A Low-Delay Low-Complexity EKF Design for Joint Channel and CFO Estimation in Multi-User Cognitive Communications

Cong Shen, Pengkai Zhao

arxiv:1111.3925 v1 · 2011-11-16 · 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{IJ3HVJGSNTFCR6CUNV73YUNGYM}

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	2026-05-18T04:08:12.851453Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42767aa4d26cca28f8546d7fbc51a6c3037fb140b34f3e44652d8b588bd15212

Aliases

arxiv: 1111.3925 · arxiv_version: 1111.3925v1 · doi: 10.48550/arxiv.1111.3925 · pith_short_12: IJ3HVJGSNTFC · pith_short_16: IJ3HVJGSNTFCR6CU · pith_short_8: IJ3HVJGS

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/IJ3HVJGSNTFCR6CUNV73YUNGYM \
  | 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: 42767aa4d26cca28f8546d7fbc51a6c3037fb140b34f3e44652d8b588bd15212

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5279b6b8d953de521144b711a15c760bb5da6086f471d484cd25a4de84d67afe",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-11-16T19:54:22Z",
    "title_canon_sha256": "927ed945b67b0c592721ee9374aebd213d002a569f26fd9d2063d386b07c62d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3925",
    "kind": "arxiv",
    "version": 1
  }
}