Pith Number

pith:YFJ7YUBN

pith:2025:YFJ7YUBNC44MYNNWFZJCYD3SRZ

not attested not anchored not stored refs pending

Comparison of different Unique hard attention transformer models by the formal languages they can recognize

Leonid Ryvkin

arxiv:2506.03370 v1 · 2025-06-03 · cs.LG · cs.CL · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YFJ7YUBNC44MYNNWFZJCYD3SRZ}

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	2026-07-05T11:15:26.072901Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c153fc502d1738cc35b62e522c0f728e77701bb720db69fe666ba4c2fd10b651

Aliases

arxiv: 2506.03370 · arxiv_version: 2506.03370v1 · doi: 10.48550/arxiv.2506.03370 · pith_short_12: YFJ7YUBNC44M · pith_short_16: YFJ7YUBNC44MYNNW · pith_short_8: YFJ7YUBN

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/YFJ7YUBNC44MYNNWFZJCYD3SRZ \
  | 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: c153fc502d1738cc35b62e522c0f728e77701bb720db69fe666ba4c2fd10b651

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "700d01be119ac4f9ea293456d807fd39a14a8e0651e309a2579306a199e239de",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.FL"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-06-03T20:28:51Z",
    "title_canon_sha256": "ecd849f950575b87a4e0e4578de1ad6cab89bec19ab3efa62f2e4a39847741ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.03370",
    "kind": "arxiv",
    "version": 1
  }
}