Pith Number

pith:T4KJ7WHQ

pith:2026:T4KJ7WHQK2DHRHGGFZ6QE75SSS

not attested not anchored not stored refs pending

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

Coleman Haley, Ram Janarthan, Sharon Goldwater

arxiv:2606.30815 v1 · 2026-06-29 · cs.CL · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T4KJ7WHQK2DHRHGGFZ6QE75SSS}

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	2026-07-01T00:17:18.349223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f149fd8f05686789cc62e7d027fb2948278a4c364c2e229e943aa183706648d

Aliases

arxiv: 2606.30815 · arxiv_version: 2606.30815v1 · doi: 10.48550/arxiv.2606.30815 · pith_short_12: T4KJ7WHQK2DH · pith_short_16: T4KJ7WHQK2DHRHGG · pith_short_8: T4KJ7WHQ

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/T4KJ7WHQK2DHRHGGFZ6QE75SSS \
  | 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: 9f149fd8f05686789cc62e7d027fb2948278a4c364c2e229e943aa183706648d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ad8715aa4f66a7d1b8ff83eb3918cbb3fbc82662dce7b9b0485809e57fca058",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-06-29T18:42:03Z",
    "title_canon_sha256": "177ef10be9b78d9cf41e15eca33d26242935b93f6575149b82c500d3f121e869"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.30815",
    "kind": "arxiv",
    "version": 1
  }
}