Pith Number

pith:5HU5SQM4

pith:2015:5HU5SQM4N3LVYZALTL4KHKKVWM

not attested not anchored not stored refs pending

Sparseness helps: Sparsity Augmented Collaborative Representation for Classification

Ajmal Mian, Faisal Shafait, Naveed Akhtar

arxiv:1511.08956 v1 · 2015-11-29 · 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{5HU5SQM4N3LVYZALTL4KHKKVWM}

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	2026-05-18T01:25:45.989714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9e9d9419c6ed75c640b9af8a3a955b3196863fecc9229844393ceb52ce02ce6

Aliases

arxiv: 1511.08956 · arxiv_version: 1511.08956v1 · doi: 10.48550/arxiv.1511.08956 · pith_short_12: 5HU5SQM4N3LV · pith_short_16: 5HU5SQM4N3LVYZAL · pith_short_8: 5HU5SQM4

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/5HU5SQM4N3LVYZALTL4KHKKVWM \
  | 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: e9e9d9419c6ed75c640b9af8a3a955b3196863fecc9229844393ceb52ce02ce6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "614fc90be12fe55247270a4086c78c0291a981a4bd4975c2702d82db3a6efe30",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-11-29T01:59:34Z",
    "title_canon_sha256": "7e189eee4beb52142235a8ea5d9281d31ab4979a76dd6356456ddad9e9f39e36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.08956",
    "kind": "arxiv",
    "version": 1
  }
}