Pith Number

pith:VJL5I3GB

pith:2015:VJL5I3GBR4ILJGMXM7L2HGV7BM

not attested not anchored not stored refs pending

Convergence radius and sample complexity of ITKM algorithms for dictionary learning

Karin Schnass

arxiv:1503.07027 v4 · 2015-03-24 · cs.LG · 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{VJL5I3GBR4ILJGMXM7L2HGV7BM}

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	2026-05-18T01:09:42.251111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa57d46cc18f10b4999767d7a39abf0b3a9ca536405775699bf0ea108ce8ecff

Aliases

arxiv: 1503.07027 · arxiv_version: 1503.07027v4 · doi: 10.48550/arxiv.1503.07027 · pith_short_12: VJL5I3GBR4IL · pith_short_16: VJL5I3GBR4ILJGMX · pith_short_8: VJL5I3GB

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/VJL5I3GBR4ILJGMXM7L2HGV7BM \
  | 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: aa57d46cc18f10b4999767d7a39abf0b3a9ca536405775699bf0ea108ce8ecff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00a616501ba39ec5d023846027bec04063b6d3adaf389f8ede7b59794c15bdb9",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-03-24T13:29:12Z",
    "title_canon_sha256": "66b2fc245080f5fab987c935e90506f3e2c045329a0f15a59f04814892ee2d4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07027",
    "kind": "arxiv",
    "version": 4
  }
}