Pith Number

pith:5TMUYCIA

pith:2015:5TMUYCIA64VXZ6MSCWZQZYR3VQ

not attested not anchored not stored refs pending

Unsupervised Feature Learning from Temporal Data

David Eigen, Joan Bruna, Jonathan Tompson, Ross Goroshin, Yann LeCun

arxiv:1504.02518 v2 · 2015-04-09 · 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{5TMUYCIA64VXZ6MSCWZQZYR3VQ}

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	2026-05-18T02:18:40.227112Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecd94c0900f72b7cf99215b30ce23bac2e0deb3107ac8631cf82c132066acf62

Aliases

arxiv: 1504.02518 · arxiv_version: 1504.02518v2 · doi: 10.48550/arxiv.1504.02518 · pith_short_12: 5TMUYCIA64VX · pith_short_16: 5TMUYCIA64VXZ6MS · pith_short_8: 5TMUYCIA

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/5TMUYCIA64VXZ6MSCWZQZYR3VQ \
  | 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: ecd94c0900f72b7cf99215b30ce23bac2e0deb3107ac8631cf82c132066acf62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2d51a8cfcc85f7b4ec9cbb7f2a2d5fe410e95ba3b34824b2417ee97a4281250",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-04-09T23:26:26Z",
    "title_canon_sha256": "e756b3118055739f94f07c4ec66e2dc49c0d0aa84ce79a23c79d28a483a52f30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.02518",
    "kind": "arxiv",
    "version": 2
  }
}