Pith Number

pith:RPKBNUDS

pith:2019:RPKBNUDSQJ4YP3KAVU6PPWXIT7

not attested not anchored not stored refs pending

Word and character segmentation directly in run-length compressed handwritten document images

Amarnath R, Mohammed Javed, P. Nagabhushan

arxiv:1909.05146 v1 · 2019-08-18 · 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{RPKBNUDSQJ4YP3KAVU6PPWXIT7}

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	2026-07-05T00:04:03.575497Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bd416d072827987ed40ad3cf7dae89ffa4bf3f1161776c776273a7f144dac28

Aliases

arxiv: 1909.05146 · arxiv_version: 1909.05146v1 · doi: 10.48550/arxiv.1909.05146 · pith_short_12: RPKBNUDSQJ4Y · pith_short_16: RPKBNUDSQJ4YP3KA · pith_short_8: RPKBNUDS

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/RPKBNUDSQJ4YP3KAVU6PPWXIT7 \
  | 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: 8bd416d072827987ed40ad3cf7dae89ffa4bf3f1161776c776273a7f144dac28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "071e29fbdf1e83c018c90d3a9cae9599945c23160349bb7064cea4bfbfe4f8b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-08-18T09:48:52Z",
    "title_canon_sha256": "cb5ca8a951cbfc5e5603b076821c1fdca8d6309837df644c9b77216c11068d0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.05146",
    "kind": "arxiv",
    "version": 1
  }
}