Pith Number

pith:DOIANRIO

pith:2012:DOIANRIOWRL2M5SD34KDDIVXM3

not attested not anchored not stored refs pending

Constrained Overcomplete Analysis Operator Learning for Cosparse Signal Modelling

Mehrdad Yaghoobi, Mike E. Davies, Remi Gribonval, Sangnam Nam

arxiv:1205.4133 v2 · 2012-05-18 · math.NA · 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{DOIANRIOWRL2M5SD34KDDIVXM3}

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	2026-05-18T01:57:25.717983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b9006c50eb457a67643df1431a2b766dbd1959bf1774d4b602e786052e4393f

Aliases

arxiv: 1205.4133 · arxiv_version: 1205.4133v2 · doi: 10.48550/arxiv.1205.4133 · pith_short_12: DOIANRIOWRL2 · pith_short_16: DOIANRIOWRL2M5SD · pith_short_8: DOIANRIO

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/DOIANRIOWRL2M5SD34KDDIVXM3 \
  | 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: 1b9006c50eb457a67643df1431a2b766dbd1959bf1774d4b602e786052e4393f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3206c8243efd54ef9040499a0cd0578a6605b842133a045aff9e535e775bdd61",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-05-18T10:54:39Z",
    "title_canon_sha256": "54b75686e3ca9ed91f469aaf15d142907341974fcdac6c7f180db1888adc7d0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4133",
    "kind": "arxiv",
    "version": 2
  }
}