Pith Number

pith:ZDYZR6Z4

pith:2011:ZDYZR6Z453QQ4IXQRA3IDD4G7N

not attested not anchored not stored refs pending

A Probabilistic Framework for Discriminative Dictionary Learning

Bernard Ghanem, Narendra Ahuja

arxiv:1109.2389 v1 · 2011-09-12 · cs.CV · 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{ZDYZR6Z453QQ4IXQRA3IDD4G7N}

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	2026-05-18T04:13:37.791692Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8f198fb3ceee10e22f08836818f86fb5802d517c529df68a0e1b353ca9806d5

Aliases

arxiv: 1109.2389 · arxiv_version: 1109.2389v1 · doi: 10.48550/arxiv.1109.2389 · pith_short_12: ZDYZR6Z453QQ · pith_short_16: ZDYZR6Z453QQ4IXQ · pith_short_8: ZDYZR6Z4

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/ZDYZR6Z453QQ4IXQRA3IDD4G7N \
  | 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: c8f198fb3ceee10e22f08836818f86fb5802d517c529df68a0e1b353ca9806d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c064fc471147d199e1fd68656562ee3b8dee2d1cf070a620bce35ad8abca823",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2011-09-12T07:45:03Z",
    "title_canon_sha256": "4970b164cdbead32b8028dbada0ec1c256dfa1dbb5cffc01a3d6797e13645cee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2389",
    "kind": "arxiv",
    "version": 1
  }
}