Pith Number

pith:M5P4B3JK

pith:2018:M5P4B3JKTP4IUS7QNBBJ7EISSA

not attested not anchored not stored refs pending

Improving OCR Accuracy on Early Printed Books by combining Pretraining, Voting, and Active Learning

Christian Reul, Christoph Wick, Frank Puppe, Uwe Springmann

arxiv:1802.10038 v2 · 2018-02-27 · 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{M5P4B3JKTP4IUS7QNBBJ7EISSA}

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	2026-05-18T00:22:18.149284Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

675fc0ed2a9bf88a4bf068429f91129023497a8231e4279b0d2e8db8c5e84664

Aliases

arxiv: 1802.10038 · arxiv_version: 1802.10038v2 · doi: 10.48550/arxiv.1802.10038 · pith_short_12: M5P4B3JKTP4I · pith_short_16: M5P4B3JKTP4IUS7Q · pith_short_8: M5P4B3JK

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/M5P4B3JKTP4IUS7QNBBJ7EISSA \
  | 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: 675fc0ed2a9bf88a4bf068429f91129023497a8231e4279b0d2e8db8c5e84664

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df40177698e777ed218c6da9a7eb2af254251e86c768340bd90a89e14c490bb8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-02-27T17:35:36Z",
    "title_canon_sha256": "9d8fe9b41a57c18d1480a8a2b887656d9a31feb9dffc5804c13226ab84430916"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.10038",
    "kind": "arxiv",
    "version": 2
  }
}