Pith Number

pith:5WQQKYMZ

pith:2025:5WQQKYMZ47XSL55PUOZCXKRLIE

not attested not anchored not stored refs pending

Can Language Models Learn Typologically Implausible Languages?

Alex Warstadt, Ryan Cotterell, Tatsuki Kuribayashi, Tianyang Xu, Yohei Oseki

arxiv:2502.12317 v1 · 2025-02-17 · cs.CL · cs.LG

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

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\usepackage{pith}
\pithnumber{5WQQKYMZ47XSL55PUOZCXKRLIE}

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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

When transformers learn "impossible" languages, what do they learn?

Implicit Representations of Grammaticality in Language Models

A framework for analyzing concept representations in neural models

Receipt and verification

First computed	2026-07-05T10:15:53.525570Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eda1056199e7ef25f7afa3b22baa2b410bd66075691f281ff6f7a2723322607a

Aliases

arxiv: 2502.12317 · arxiv_version: 2502.12317v1 · doi: 10.48550/arxiv.2502.12317 · pith_short_12: 5WQQKYMZ47XS · pith_short_16: 5WQQKYMZ47XSL55P · pith_short_8: 5WQQKYMZ

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/5WQQKYMZ47XSL55PUOZCXKRLIE \
  | 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: eda1056199e7ef25f7afa3b22baa2b410bd66075691f281ff6f7a2723322607a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2842c10f037edf383ed1d8b9c2408737e565d5897fc36a11324e77e4ddb81ec4",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-02-17T20:40:01Z",
    "title_canon_sha256": "cb9ac7112e6bba9698aaed6a97cdd24388e58ff8b26c4b5f99982ab8439e14cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.12317",
    "kind": "arxiv",
    "version": 1
  }
}