Pith Number

pith:UYJGP6NR

pith:2025:UYJGP6NRDITNODASGJGQ7OCKA7

not attested not anchored not stored refs pending

Multimodal LLMs for OCR, OCR Post-Correction, and Named Entity Recognition in Historical Documents

Gavin Greif, Niclas Griesshaber, Robin Greif

arxiv:2504.00414 v1 · 2025-04-01 · cs.CL · cs.AI · cs.DL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UYJGP6NRDITNODASGJGQ7OCKA7}

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.

Cited by

3 papers in Pith

Pretraining Language Models on Historical Text

The Devil is in the Details -- From OCR for Old Church Slavonic to Purely Visual Stemma Reconstruction

GlotOCR Bench: OCR Models Still Struggle Beyond a Handful of Unicode Scripts

Receipt and verification

First computed	2026-07-05T10:42:25.935574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a61267f9b11a26d70c12324d0fb84a07c388a4ef1dc28825f175518dc342cd94

Aliases

arxiv: 2504.00414 · arxiv_version: 2504.00414v1 · doi: 10.48550/arxiv.2504.00414 · pith_short_12: UYJGP6NRDITN · pith_short_16: UYJGP6NRDITNODAS · pith_short_8: UYJGP6NR

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/UYJGP6NRDITNODASGJGQ7OCKA7 \
  | 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: a61267f9b11a26d70c12324d0fb84a07c388a4ef1dc28825f175518dc342cd94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c55f4b9960f94dc8525d24581eee1448284bf2b0258b8578789456deca21262",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.DL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-04-01T04:21:34Z",
    "title_canon_sha256": "a3521a16b6cf3036967f7beee0fb67a370c7edbfb231edadca65f7753186f5c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.00414",
    "kind": "arxiv",
    "version": 1
  }
}