Pith Number

pith:YP25EWIF

pith:2020:YP25EWIF2VK4TC3ZH3A5I34P3K

not attested not anchored not stored refs pending

Embedded Large-Scale Handwritten Chinese Character Recognition

Hans J. G. A. Dolfing, Jerome R. Bellegarda, Ryan S. Dixon, Youssouf Chherawala

arxiv:2004.06209 v1 · 2020-04-13 · 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{YP25EWIF2VK4TC3ZH3A5I34P3K}

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	2026-07-05T01:03:24.566476Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3f5d25905d555c98b793ec1d46f8fda948384eaf554ce8553863439e20409b4

Aliases

arxiv: 2004.06209 · arxiv_version: 2004.06209v1 · doi: 10.48550/arxiv.2004.06209 · pith_short_12: YP25EWIF2VK4 · pith_short_16: YP25EWIF2VK4TC3Z · pith_short_8: YP25EWIF

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/YP25EWIF2VK4TC3ZH3A5I34P3K \
  | 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: c3f5d25905d555c98b793ec1d46f8fda948384eaf554ce8553863439e20409b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77ffcff760970c970ce997d4f75c0388b018690b1a959768e598fa735e89d707",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-04-13T21:21:34Z",
    "title_canon_sha256": "bec23c7f133aed718fdaa9ae5753cbcd205b19bbcb658ed5db8e384f0839fb97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.06209",
    "kind": "arxiv",
    "version": 1
  }
}