Pith Number

pith:QR33PDTN

pith:2019:QR33PDTNBOXQJQKRULWIOY4BG2

not attested not anchored not stored refs pending

Large Margin Multi-modal Multi-task Feature Extraction for Image Classification

Chao Xu, Dacheng Tao, Jie Gui, Yonggang Wen, Yong Luo

arxiv:1904.04088 v1 · 2019-04-08 · stat.ML · 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{QR33PDTNBOXQJQKRULWIOY4BG2}

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	2026-05-17T23:49:07.115229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8477b78e6d0baf04c151a2ec87638136a200f5255629299d30b88c85128646ac

Aliases

arxiv: 1904.04088 · arxiv_version: 1904.04088v1 · doi: 10.48550/arxiv.1904.04088 · pith_short_12: QR33PDTNBOXQ · pith_short_16: QR33PDTNBOXQJQKR · pith_short_8: QR33PDTN

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/QR33PDTNBOXQJQKRULWIOY4BG2 \
  | 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: 8477b78e6d0baf04c151a2ec87638136a200f5255629299d30b88c85128646ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46602a9e9c39934fdfc072a2267fd2fc799e5faef8aa9fec60812dbf86801ea1",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2019-04-08T14:14:19Z",
    "title_canon_sha256": "eb21e0f742b814a6b45c7dce5cf39bc4171c3e413f5de6513a3f1a6843543ec3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04088",
    "kind": "arxiv",
    "version": 1
  }
}