Pith Number

pith:3VRUO43O

pith:2015:3VRUO43O66ZVGWZ6MG5IWPHSRI

not attested not anchored not stored refs pending

CURL: Co-trained Unsupervised Representation Learning for Image Classification

Claudio Cusano, Gianluigi Ciocca, Simone Bianco

arxiv:1505.08098 v2 · 2015-05-29 · cs.LG · cs.CV · 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{3VRUO43O66ZVGWZ6MG5IWPHSRI}

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	2026-05-18T01:33:23.956002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd6347736ef7b3535b3e61ba8b3cf28a361387fb6e4d7183f4963deb4c48615f

Aliases

arxiv: 1505.08098 · arxiv_version: 1505.08098v2 · doi: 10.48550/arxiv.1505.08098 · pith_short_12: 3VRUO43O66ZV · pith_short_16: 3VRUO43O66ZVGWZ6 · pith_short_8: 3VRUO43O

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/3VRUO43O66ZVGWZ6MG5IWPHSRI \
  | 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: dd6347736ef7b3535b3e61ba8b3cf28a361387fb6e4d7183f4963deb4c48615f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41cb9ef1f55d17c4dbab835c77c5279aed40169b87832be53f096fd695c3bee2",
    "cross_cats_sorted": [
      "cs.CV",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-05-29T15:57:40Z",
    "title_canon_sha256": "3471a8302ebfc152af9595b9cb7a3e9b7d7185dd0bb871276a42085da89e5543"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.08098",
    "kind": "arxiv",
    "version": 2
  }
}