Pith Number

pith:4FNKXB7E

pith:2018:4FNKXB7EIQCGFCJPNBNZ2ICE3F

not attested not anchored not stored refs pending

Supervised Convolutional Sparse Coding

Bernard Ghanem, Lama Affara, Peter Wonka

arxiv:1804.02678 v1 · 2018-04-08 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4FNKXB7EIQCGFCJPNBNZ2ICE3F}

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	2026-05-18T00:18:58.717733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e15aab87e4440462892f685b9d2044d9599e2028218733be076ec4b5202f5222

Aliases

arxiv: 1804.02678 · arxiv_version: 1804.02678v1 · doi: 10.48550/arxiv.1804.02678 · pith_short_12: 4FNKXB7EIQCG · pith_short_16: 4FNKXB7EIQCGFCJP · pith_short_8: 4FNKXB7E

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/4FNKXB7EIQCGFCJPNBNZ2ICE3F \
  | 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: e15aab87e4440462892f685b9d2044d9599e2028218733be076ec4b5202f5222

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d8244d6f119b0e5aa2a1e8aea41261bd63830ce7d68802b8ebcc187291169f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-04-08T12:05:12Z",
    "title_canon_sha256": "b94432ec0d37b3b33ee6c6cc407b460fb11eef03e8c10cf53529077034c3ed20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02678",
    "kind": "arxiv",
    "version": 1
  }
}