Pith Number

pith:IHH7O535

pith:2021:IHH7O5356CA4BB3BDYLEO4HQF4

not attested not anchored not stored refs pending

Noise Attention based Spectrum Anomaly Detection Method for Unauthorized Bands

Jing Xu, Naijin Liu, Shuai Yuan, Yu Tian

arxiv:2104.08517 v1 · 2021-04-17 · 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{IHH7O5356CA4BB3BDYLEO4HQF4}

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	2026-07-05T02:32:52.744142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41cff7777df081c087611e164770f02f3595bd7242ea3958f683358dc2c7d551

Aliases

arxiv: 2104.08517 · arxiv_version: 2104.08517v1 · doi: 10.48550/arxiv.2104.08517 · pith_short_12: IHH7O5356CA4 · pith_short_16: IHH7O5356CA4BB3B · pith_short_8: IHH7O535

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/IHH7O5356CA4BB3BDYLEO4HQF4 \
  | 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: 41cff7777df081c087611e164770f02f3595bd7242ea3958f683358dc2c7d551

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0210d184b81d47270f2efcd9c8b6ecdce4249541af605e402e6b1351b1067293",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2021-04-17T11:49:59Z",
    "title_canon_sha256": "623e16d9cf806b781faac23c6c33acfaac2e4bcafc422a5f86d5a1e0b455a488"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.08517",
    "kind": "arxiv",
    "version": 1
  }
}