Pith Number

pith:CPSP7B53

pith:2018:CPSP7B53C3T63NNX2OKRFSS4XS

not attested not anchored not stored refs pending

Learning Sparse Deep Feedforward Networks via Tree Skeleton Expansion

Nevin L. Zhang, Xiaopeng Li, Zhourong Chen

arxiv:1803.06120 v1 · 2018-03-16 · 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{CPSP7B53C3T63NNX2OKRFSS4XS}

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	2026-05-18T00:20:50.554903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13e4ff87bb16e7edb5b7d39512ca5cbca71feb43398a08fdbf9c6e64047070a5

Aliases

arxiv: 1803.06120 · arxiv_version: 1803.06120v1 · doi: 10.48550/arxiv.1803.06120 · pith_short_12: CPSP7B53C3T6 · pith_short_16: CPSP7B53C3T63NNX · pith_short_8: CPSP7B53

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/CPSP7B53C3T63NNX2OKRFSS4XS \
  | 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: 13e4ff87bb16e7edb5b7d39512ca5cbca71feb43398a08fdbf9c6e64047070a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af35cc7996e47f75ef8a8d2a6ffe5e0f53dd42641f2383f2206597c335b24b87",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-03-16T09:22:47Z",
    "title_canon_sha256": "e52f79cc609b04e71d3cb68f5c3b21b01d5947e94d2c57fcedb00d5447e4d31e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.06120",
    "kind": "arxiv",
    "version": 1
  }
}