Pith Number

pith:H7KIHFSA

pith:2015:H7KIHFSAE35477IYIBTYFKHQLS

not attested not anchored not stored refs pending

Covariance-Based OFDM Spectrum Sensing with Sub-Nyquist Samples

Alireza Razavi, Danijela Cabric, Mikko Valkama

arxiv:1501.02405 v1 · 2015-01-10 · 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{H7KIHFSAE35477IYIBTYFKHQLS}

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	2026-05-18T02:29:38.040748Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fd483964026fbcffd18406782a8f05c9bd431dcaa609b65eb9d77f30960c897

Aliases

arxiv: 1501.02405 · arxiv_version: 1501.02405v1 · doi: 10.48550/arxiv.1501.02405 · pith_short_12: H7KIHFSAE354 · pith_short_16: H7KIHFSAE35477IY · pith_short_8: H7KIHFSA

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/H7KIHFSAE35477IYIBTYFKHQLS \
  | 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: 3fd483964026fbcffd18406782a8f05c9bd431dcaa609b65eb9d77f30960c897

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8866228c7caccd36aef4b93c1436f4256d113591271b298931fe8a99846662f2",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-01-10T23:34:04Z",
    "title_canon_sha256": "dd7f113a718b43f99361c91cad1a937a047404c82dfa9a241aa975850554a639"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.02405",
    "kind": "arxiv",
    "version": 1
  }
}