Pith Number

pith:4HPYVXDR

pith:2015:4HPYVXDRZAEMTZBR2SEVOBBQL6

not attested not anchored not stored refs pending

DropSample: A New Training Method to Enhance Deep Convolutional Neural Networks for Large-Scale Unconstrained Handwritten Chinese Character Recognition

Dacheng Tao, Lianwen Jin, Weixin Yang, Zecheng Xie, Ziyong Feng

arxiv:1505.05354 v1 · 2015-05-20 · 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{4HPYVXDRZAEMTZBR2SEVOBBQL6}

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	2026-05-18T02:03:56.726036Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1df8adc71c808c9e431d4895704305f9cd3a6ff95ad42119885b0d8cf39c9f2

Aliases

arxiv: 1505.05354 · arxiv_version: 1505.05354v1 · doi: 10.48550/arxiv.1505.05354 · pith_short_12: 4HPYVXDRZAEM · pith_short_16: 4HPYVXDRZAEMTZBR · pith_short_8: 4HPYVXDR

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/4HPYVXDRZAEMTZBR2SEVOBBQL6 \
  | 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: e1df8adc71c808c9e431d4895704305f9cd3a6ff95ad42119885b0d8cf39c9f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62dc19dd65d7b464b586a91c01da40e2b636e8f37b5b2accbc125013d5ae812a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-05-20T13:08:57Z",
    "title_canon_sha256": "495f4125f140ba04039ce1f44dcfb048e14b7f8866da80a7888fe7cb6541f1fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.05354",
    "kind": "arxiv",
    "version": 1
  }
}