Pith Number

pith:AIU3L3YV

pith:2017:AIU3L3YVSCGIZCP6TU6CLJV3VQ

not attested not anchored not stored refs pending

A Challenge Set Approach to Evaluating Machine Translation

Colin Cherry, George Foster, Pierre Isabelle

arxiv:1704.07431 v5 · 2017-04-24 · 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{AIU3L3YVSCGIZCP6TU6CLJV3VQ}

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	2026-05-18T00:36:31.884254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0229b5ef15908c8c89fe9d3c25a6bbac15ae088ae130ed3ac1d341bcfd440d17

Aliases

arxiv: 1704.07431 · arxiv_version: 1704.07431v5 · doi: 10.48550/arxiv.1704.07431 · pith_short_12: AIU3L3YVSCGI · pith_short_16: AIU3L3YVSCGIZCP6 · pith_short_8: AIU3L3YV

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/AIU3L3YVSCGIZCP6TU6CLJV3VQ \
  | 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: 0229b5ef15908c8c89fe9d3c25a6bbac15ae088ae130ed3ac1d341bcfd440d17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1b3dab5593b3ff4aa3daf0050d2824a9e1ba68dc7e32ffc36c502790b38694f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2017-04-24T19:34:38Z",
    "title_canon_sha256": "ea280279b048e7c5588e5e3a4736f2cc066b8e2a833de2ada0c803572439fd85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.07431",
    "kind": "arxiv",
    "version": 5
  }
}