Pith Number

pith:PHAPVHPA

pith:2017:PHAPVHPAAVOJC6INA3ZGPTCIOT

not attested not anchored not stored refs pending

Improving OCR Accuracy on Early Printed Books by utilizing Cross Fold Training and Voting

Christian Reul, Christoph Wick, Frank Puppe, Uwe Springmann

arxiv:1711.09670 v1 · 2017-11-27 · 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{PHAPVHPAAVOJC6INA3ZGPTCIOT}

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	2026-05-18T00:10:03.584522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79c0fa9de0055c91790d06f267cc4874c6abce5cc9934bb512ca6cde36f209e8

Aliases

arxiv: 1711.09670 · arxiv_version: 1711.09670v1 · doi: 10.48550/arxiv.1711.09670 · pith_short_12: PHAPVHPAAVOJ · pith_short_16: PHAPVHPAAVOJC6IN · pith_short_8: PHAPVHPA

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/PHAPVHPAAVOJC6INA3ZGPTCIOT \
  | 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: 79c0fa9de0055c91790d06f267cc4874c6abce5cc9934bb512ca6cde36f209e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c025d0bbbab90384f3ae82beb21d207fd61bbca462ef3704930d3e97aa19dcaa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-11-27T13:15:52Z",
    "title_canon_sha256": "f3c8e528e9e21720966283b6313efe813d62d50863a8e7fd210c5f21cde72c77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.09670",
    "kind": "arxiv",
    "version": 1
  }
}