Pith Number

pith:C2VVHW7F

pith:2010:C2VVHW7FZRF2U2TLCER5EQBTVR

not attested not anchored not stored refs pending

A Simple CW-SSIM Kernel-based Nearest Neighbor Method for Handwritten Digit Classification

Guangzhe Fan, Jiheng Wang, Zhou Wang

arxiv:1008.3951 v3 · 2010-08-24 · 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{C2VVHW7FZRF2U2TLCER5EQBTVR}

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	2026-05-18T04:41:26.001228Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16ab53dbe5cc4baa6a6b1123d24033ac4ddb24f7eeea5cc2598e76b7d617ecb4

Aliases

arxiv: 1008.3951 · arxiv_version: 1008.3951v3 · doi: 10.48550/arxiv.1008.3951 · pith_short_12: C2VVHW7FZRF2 · pith_short_16: C2VVHW7FZRF2U2TL · pith_short_8: C2VVHW7F

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/C2VVHW7FZRF2U2TLCER5EQBTVR \
  | 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: 16ab53dbe5cc4baa6a6b1123d24033ac4ddb24f7eeea5cc2598e76b7d617ecb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9a88c01f0bac6cba8af807958935ec2b115b07dde5d48739a1dd19e96ceb9de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2010-08-24T02:47:00Z",
    "title_canon_sha256": "2556f8ec05cd7c295d6e443f3740df24afa853c915fbdf17eea39236aae94d95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.3951",
    "kind": "arxiv",
    "version": 3
  }
}