Pith Number

pith:OKPWRDZL

pith:2017:OKPWRDZLKWPXMAMSVQGKXZKTRT

not attested not anchored not stored refs pending

Fast Convolutional Sparse Coding in the Dual Domain

Bernard Ghanem, Lama Affara, Peter Wonka

arxiv:1709.09479 v2 · 2017-09-27 · 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{OKPWRDZLKWPXMAMSVQGKXZKTRT}

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	2026-05-18T00:19:03.529552Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

729f688f2b559f760192ac0cabe5538cfe914b7be04fe58fd22fff63b08ae1e3

Aliases

arxiv: 1709.09479 · arxiv_version: 1709.09479v2 · doi: 10.48550/arxiv.1709.09479 · pith_short_12: OKPWRDZLKWPX · pith_short_16: OKPWRDZLKWPXMAMS · pith_short_8: OKPWRDZL

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/OKPWRDZLKWPXMAMSVQGKXZKTRT \
  | 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: 729f688f2b559f760192ac0cabe5538cfe914b7be04fe58fd22fff63b08ae1e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9e27493ab7febdb88c0b2e7cffa92a15cd81ff8775b6632f0fd486f1b56ceed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-09-27T12:55:00Z",
    "title_canon_sha256": "c7a79bd3eafb1f16cab0e46741a511b840b8554d241aa7f1aaf1aca0b64a02ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.09479",
    "kind": "arxiv",
    "version": 2
  }
}