Pith Number

pith:JRTHHRH4

pith:2017:JRTHHRH4FOUNNK4O7ZJ3DWHNMD

not attested not anchored not stored refs pending

Improving Sparsity in Kernel Adaptive Filters Using a Unit-Norm Dictionary

Felipe Tobar

arxiv:1707.04236 v1 · 2017-07-13 · stat.ML · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JRTHHRH4FOUNNK4O7ZJ3DWHNMD}

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	2026-05-18T00:40:20.170166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c6673c4fc2ba8d6ab8efe53b1d8ed60c401587306a65d048ac69a8adacfefe4

Aliases

arxiv: 1707.04236 · arxiv_version: 1707.04236v1 · doi: 10.48550/arxiv.1707.04236 · pith_short_12: JRTHHRH4FOUN · pith_short_16: JRTHHRH4FOUNNK4O · pith_short_8: JRTHHRH4

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/JRTHHRH4FOUNNK4O7ZJ3DWHNMD \
  | 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: 4c6673c4fc2ba8d6ab8efe53b1d8ed60c401587306a65d048ac69a8adacfefe4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "909c73951bed0c05d06af51474484797d54d2224af7b099124efc292f2db1c11",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2017-07-13T17:37:46Z",
    "title_canon_sha256": "a0a29ece3143462b8a482f683056690ecfac5a29ea21505c8fa4295462c41cbc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.04236",
    "kind": "arxiv",
    "version": 1
  }
}