Pith Number

pith:O2MB2DZD

pith:2014:O2MB2DZD6QMX5K4BVTMG5MGJ2B

not attested not anchored not stored refs pending

Optical Character Recognition, Using K-Nearest Neighbors

Wei Wang

arxiv:1411.1442 v1 · 2014-11-05 · 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{O2MB2DZD6QMX5K4BVTMG5MGJ2B}

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	2026-05-18T02:38:27.962445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76981d0f23f4197eab81acd86eb0c9d06e7fdbde20110e6f20bc6b9e4817af66

Aliases

arxiv: 1411.1442 · arxiv_version: 1411.1442v1 · doi: 10.48550/arxiv.1411.1442 · pith_short_12: O2MB2DZD6QMX · pith_short_16: O2MB2DZD6QMX5K4B · pith_short_8: O2MB2DZD

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/O2MB2DZD6QMX5K4BVTMG5MGJ2B \
  | 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: 76981d0f23f4197eab81acd86eb0c9d06e7fdbde20110e6f20bc6b9e4817af66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da16690809809e1ec223a913d880e5b08aea6eb9e67b497bc0efd8eb4c8ad64a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2014-11-05T22:56:10Z",
    "title_canon_sha256": "d35690be5971a034cd9ba86807f2a779cfe4ec1a876443e3291967db9976b1d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.1442",
    "kind": "arxiv",
    "version": 1
  }
}