Pith Number

pith:UUCKHR7L

pith:2010:UUCKHR7L2A5J44GRWE3HIEXZUP

not attested not anchored not stored refs pending

Task-Driven Dictionary Learning

Francis Bach (LIENS, INRIA Paris - Rocquencourt), Jean Ponce (INRIA Paris - Rocquencourt, Julien Mairal (INRIA Paris - Rocquencourt, LIENS)

arxiv:1009.5358 v2 · 2010-09-27 · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UUCKHR7L2A5J44GRWE3HIEXZUP}

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	2026-05-18T03:13:56.601935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a504a3c7ebd03a9e70d1b1367412f9a3c83c270f5a28aec8b872163d351c50de

Aliases

arxiv: 1009.5358 · arxiv_version: 1009.5358v2 · doi: 10.48550/arxiv.1009.5358 · pith_short_12: UUCKHR7L2A5J · pith_short_16: UUCKHR7L2A5J44GR · pith_short_8: UUCKHR7L

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/UUCKHR7L2A5J44GRWE3HIEXZUP \
  | 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: a504a3c7ebd03a9e70d1b1367412f9a3c83c270f5a28aec8b872163d351c50de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3b683e3670b127a6635208fd02d7dfe0ba6ac8e61d6074307a1933dad2ff3b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2010-09-27T19:06:49Z",
    "title_canon_sha256": "2cc49b36c55f8b3df11a195e17b16d3be4a1eb558eff3758b5952a23cfabc9f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.5358",
    "kind": "arxiv",
    "version": 2
  }
}