Pith Number

pith:RLL4NQFV

pith:2026:RLL4NQFVF5KWCF5CUVCY32KGBZ

not attested not anchored not stored refs pending

Language Model Circuits Are Sparse in the Neuron Basis

Aryaman Arora, Jacob Steinhardt, Sarah Schwettmann, Zhengxuan Wu

arxiv:2601.22594 v2 · 2026-01-30 · 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{RLL4NQFVF5KWCF5CUVCY32KGBZ}

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	2026-06-12T01:08:21.891155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ad7c6c0b52f556117a2a5458de9460e500584ab9a0f5c89e64e7b0ad7e6140d

Aliases

arxiv: 2601.22594 · arxiv_version: 2601.22594v2 · doi: 10.48550/arxiv.2601.22594 · pith_short_12: RLL4NQFVF5KW · pith_short_16: RLL4NQFVF5KWCF5C · pith_short_8: RLL4NQFV

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/RLL4NQFVF5KWCF5CUVCY32KGBZ \
  | 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: 8ad7c6c0b52f556117a2a5458de9460e500584ab9a0f5c89e64e7b0ad7e6140d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1f674f7e537ab72fb8dd87e5eefef58827b8c7e416b79414d7d9130d86c829e",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-01-30T05:41:19Z",
    "title_canon_sha256": "40fe92de347318c295e21b6d607e9934224f6506dbd84239af96b15c8a96581b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.22594",
    "kind": "arxiv",
    "version": 2
  }
}