Pith Number

pith:KNJ2PMQK

pith:2021:KNJ2PMQKCK2R6COBCFULCOLYHP

not attested not anchored not stored refs pending

The Theoretical Limit of Radar Target Detection

Dazhuan Xu, Han Zhang, Nan Wang, Xiaolong Kong

arxiv:2109.09941 v3 · 2021-09-21 · cs.IT · cs.PF · 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{KNJ2PMQKCK2R6COBCFULCOLYHP}

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	2026-07-05T07:29:59.768587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5353a7b20a12b51f09c11168b139783bf853472dec7bb7e72bcd4a20f946b2a0

Aliases

arxiv: 2109.09941 · arxiv_version: 2109.09941v3 · doi: 10.48550/arxiv.2109.09941 · pith_short_12: KNJ2PMQKCK2R · pith_short_16: KNJ2PMQKCK2R6COB · pith_short_8: KNJ2PMQK

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/KNJ2PMQKCK2R6COBCFULCOLYHP \
  | 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: 5353a7b20a12b51f09c11168b139783bf853472dec7bb7e72bcd4a20f946b2a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c93325f97ec5735ce224e3165f672a2c9111b10c6a90961a42c18b8611cb238d",
    "cross_cats_sorted": [
      "cs.PF",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2021-09-21T03:43:47Z",
    "title_canon_sha256": "48f69e9a87076cae4daeab455bf9e419bff3aa90b1bb9733dc81eb984c1d2421"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.09941",
    "kind": "arxiv",
    "version": 3
  }
}