Pith Number

pith:E2EAKB6Q

pith:2018:E2EAKB6QLIGRJID2G76XRNDPPD

not attested not anchored not stored refs pending

State of the Art Optical Character Recognition of 19th Century Fraktur Scripts using Open Source Engines

Christian Reul, Christoph Wick, Frank Puppe, Uwe Springmann

arxiv:1810.03436 v1 · 2018-10-08 · 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{E2EAKB6QLIGRJID2G76XRNDPPD}

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	2026-05-18T00:03:51.278625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26880507d05a0d14a07a37fd78b46f78e6717a0225d76d10afc6639cbaf795c2

Aliases

arxiv: 1810.03436 · arxiv_version: 1810.03436v1 · doi: 10.48550/arxiv.1810.03436 · pith_short_12: E2EAKB6QLIGR · pith_short_16: E2EAKB6QLIGRJID2 · pith_short_8: E2EAKB6Q

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/E2EAKB6QLIGRJID2G76XRNDPPD \
  | 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: 26880507d05a0d14a07a37fd78b46f78e6717a0225d76d10afc6639cbaf795c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c9ae89db7411097acc9dc8575fce6789a8c82e17eef6ca639a5bd2b257bb33a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-10-08T13:32:06Z",
    "title_canon_sha256": "03b8021574cf6af3295cd41ae82a37299343efb08fb73d28e09107d03c637bb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.03436",
    "kind": "arxiv",
    "version": 1
  }
}