Pith Number

pith:L4724ROL

pith:2018:L4724ROLR73RPZ4I67SZ7Z2XND

not attested not anchored not stored refs pending

An Evaluation of Neural Machine Translation Models on Historical Spelling Normalization

Eva Pettersson, Fabienne Cap, Gongbo Tang, Joakim Nivre

arxiv:1806.05210 v2 · 2018-06-13 · 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{L4724ROLR73RPZ4I67SZ7Z2XND}

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	2026-05-18T00:08:53.939740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f3fae45cb8ff717e788f7e59fe75768dd40f617d6a8308099e10fa6097c6375

Aliases

arxiv: 1806.05210 · arxiv_version: 1806.05210v2 · doi: 10.48550/arxiv.1806.05210 · pith_short_12: L4724ROLR73R · pith_short_16: L4724ROLR73RPZ4I · pith_short_8: L4724ROL

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/L4724ROLR73RPZ4I67SZ7Z2XND \
  | 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: 5f3fae45cb8ff717e788f7e59fe75768dd40f617d6a8308099e10fa6097c6375

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff5b53b920139aa27e85da3b137f7509ebfe67da176d629b9fe00988717762f8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-06-13T18:29:09Z",
    "title_canon_sha256": "4e3062bc158b08342d009b1fde2321eb469749bc40a174204a011c52edf94301"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.05210",
    "kind": "arxiv",
    "version": 2
  }
}