Pith Number

pith:IWKLCPQG

pith:2015:IWKLCPQGQZROBFMYCVIMZG6DFE

not attested not anchored not stored refs pending

Design of a novel convex hull based feature set for recognition of isolated handwritten Roman numerals

Mahantapas Kundu, Nibaran Das, Punam Kumar Saha, Ram Sarkar, Sandip Pramanik, Subhadip Basu

arxiv:1501.05494 v1 · 2015-01-22 · 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{IWKLCPQGQZROBFMYCVIMZG6DFE}

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	2026-05-18T02:28:54.549767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4594b13e068662e095981550cc9bc32938056e474124ff33631bf6a0cdda9200

Aliases

arxiv: 1501.05494 · arxiv_version: 1501.05494v1 · doi: 10.48550/arxiv.1501.05494 · pith_short_12: IWKLCPQGQZRO · pith_short_16: IWKLCPQGQZROBFMY · pith_short_8: IWKLCPQG

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/IWKLCPQGQZROBFMYCVIMZG6DFE \
  | 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: 4594b13e068662e095981550cc9bc32938056e474124ff33631bf6a0cdda9200

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bdc46f9d1fe3147f1de690061fb4da7ae1d184e7b7a4bc8d4673f836bd922ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-01-22T13:43:01Z",
    "title_canon_sha256": "dad8b2e0f012a58f07fd6aa58b30e34e135c33df97c8c8e4c9ad501d388fc2e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.05494",
    "kind": "arxiv",
    "version": 1
  }
}