Pith Number

pith:V4HFG3EL

pith:2025:V4HFG3ELJFWIV64FQMCG3MLLAA

not attested not anchored not stored refs pending

OCR Error Post-Correction with LLMs in Historical Documents: No Free Lunches

Cassandra Ledins, Filip Ginter, Jenna Kanerva, Siiri K\"apyaho

arxiv:2502.01205 v1 · 2025-02-03 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V4HFG3ELJFWIV64FQMCG3MLLAA}

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	2026-07-05T10:08:44.247827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af0e536c8b496c8afb8583046db16b002f4177f63d673fd659e32980a16e1c82

Aliases

arxiv: 2502.01205 · arxiv_version: 2502.01205v1 · doi: 10.48550/arxiv.2502.01205 · pith_short_12: V4HFG3ELJFWI · pith_short_16: V4HFG3ELJFWIV64F · pith_short_8: V4HFG3EL

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/V4HFG3ELJFWIV64FQMCG3MLLAA \
  | 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: af0e536c8b496c8afb8583046db16b002f4177f63d673fd659e32980a16e1c82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71b44f4560705e54b19e60c4ac644a9ea61bd94f43d7858650a12b52cde15876",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-02-03T09:55:31Z",
    "title_canon_sha256": "8b74a9fbf57c0789fab2d6944cb72f3265419f01a77081ad5bc54022859e2345"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.01205",
    "kind": "arxiv",
    "version": 1
  }
}