Pith Number

pith:OTJ2QUOA

pith:2018:OTJ2QUOA5VE5AK5OMGP4IGLJHM

not attested not anchored not stored refs pending

Frame-based Sparse Analysis and Synthesis Signal Representations and Parseval K-SVD

Ping-Tzan Huang, Tai-Lang Jong, Wen-Liang Hwang

arxiv:1801.01959 v1 · 2018-01-06 · eess.SP · 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{OTJ2QUOA5VE5AK5OMGP4IGLJHM}

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	2026-05-17T23:42:30.941623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74d3a851c0ed49d02bae619fc419693b29ba9c6fa81fc4d9d41267b436d1733f

Aliases

arxiv: 1801.01959 · arxiv_version: 1801.01959v1 · doi: 10.48550/arxiv.1801.01959 · pith_short_12: OTJ2QUOA5VE5 · pith_short_16: OTJ2QUOA5VE5AK5O · pith_short_8: OTJ2QUOA

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/OTJ2QUOA5VE5AK5OMGP4IGLJHM \
  | 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: 74d3a851c0ed49d02bae619fc419693b29ba9c6fa81fc4d9d41267b436d1733f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2a695257255e1516e97f52dcda502c376d2c60ae9b7e8a98ce83cc9dcd75ca9",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-01-06T03:31:20Z",
    "title_canon_sha256": "ee3f945767b32bfb8c962e983a3a20f9f2151cdef01e70d9d5054d6da499e428"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.01959",
    "kind": "arxiv",
    "version": 1
  }
}