Pith Number

pith:HEDVFV2J

pith:2013:HEDVFV2JVYABCRW2XEC5XZXXTJ

not attested not anchored not stored refs pending

Frequency-Domain Group-based Shrinkage Estimators for UWB Systems

Martin Haardt, Rodrigo C. de Lamare, Sheng Li

arxiv:1304.5817 v1 · 2013-04-22 · 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{HEDVFV2JVYABCRW2XEC5XZXXTJ}

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	2026-05-18T00:58:42.450082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

390752d749ae001146dab905dbe6f79a67e071bedf13aa0fefe1ced63f13c3b6

Aliases

arxiv: 1304.5817 · arxiv_version: 1304.5817v1 · doi: 10.48550/arxiv.1304.5817 · pith_short_12: HEDVFV2JVYAB · pith_short_16: HEDVFV2JVYABCRW2 · pith_short_8: HEDVFV2J

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/HEDVFV2JVYABCRW2XEC5XZXXTJ \
  | 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: 390752d749ae001146dab905dbe6f79a67e071bedf13aa0fefe1ced63f13c3b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6bad0baa17cf9c4bda613a3e25e9322882c7e48c4f36d8c2a74639e3c2bafe0",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-04-22T01:09:00Z",
    "title_canon_sha256": "f72a69c73e0a96a089ace312dd632db5d56bd752f10d12c79c80e3dab4d6c005"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5817",
    "kind": "arxiv",
    "version": 1
  }
}