Pith Number

pith:IVAZ4VJP

pith:2019:IVAZ4VJPRFKURIIYFU7A4ZV5HG

not attested not anchored not stored refs pending

A Scalable Handwritten Text Recognition System

Ashok C. Popat, Jonathan Baccash, R. Reeve Ingle, Thomas Deselaers, Yasuhisa Fujii

arxiv:1904.09150 v2 · 2019-04-19 · 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{IVAZ4VJPRFKURIIYFU7A4ZV5HG}

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	2026-05-17T23:43:14.476204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45419e552f895548a1182d3e0e66bd39816cae179ad1637455b565e629897506

Aliases

arxiv: 1904.09150 · arxiv_version: 1904.09150v2 · doi: 10.48550/arxiv.1904.09150 · pith_short_12: IVAZ4VJPRFKU · pith_short_16: IVAZ4VJPRFKURIIY · pith_short_8: IVAZ4VJP

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/IVAZ4VJPRFKURIIYFU7A4ZV5HG \
  | 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: 45419e552f895548a1182d3e0e66bd39816cae179ad1637455b565e629897506

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd8cb134eccd94e4c54f2e97ce2d332f59507534b42280e77515481e2e0a59d6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-19T11:35:27Z",
    "title_canon_sha256": "b66f4efd1e634f9211cea5f1ddcd81fe7d59beef81c71b4070f691c5c75190e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.09150",
    "kind": "arxiv",
    "version": 2
  }
}