Pith Number

pith:LTYGAJAS

pith:2025:LTYGAJASFQKQNQ6TG2P3ZXX37U

not attested not anchored not stored refs pending

Use Sparse Autoencoders to Discover Unknown Concepts, Not to Act on Known Concepts

Emma Pierson, Jon Kleinberg, Kenny Peng, Nikhil Garg, Rajiv Movva

arxiv:2506.23845 v1 · 2025-06-30 · cs.LG · cs.AI · cs.CL · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LTYGAJASFQKQNQ6TG2P3ZXX37U}

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.

Cited by

6 papers in Pith

Three Years of r/ChatGPT: Societal Impact Evaluations from Social Media Data

Conditional Hypothesis Generation for LLM-Based Text Analysis with Researcher-Specified Covariates

Not Just RLHF: Why Alignment Alone Won't Fix Multi-Agent Sycophancy

ActivationReasoning: Logical Reasoning in Latent Activation Spaces

Making Interpretable Discoveries from Unstructured Data: A High-Dimensional Multiple Hypothesis Testing Approach

Receipt and verification

First computed	2026-07-05T11:29:28.854794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5cf06024122c1506c3d3369fbcdefbfd116fb686ffdc7188e61b5741fcb9e194

Aliases

arxiv: 2506.23845 · arxiv_version: 2506.23845v1 · doi: 10.48550/arxiv.2506.23845 · pith_short_12: LTYGAJASFQKQ · pith_short_16: LTYGAJASFQKQNQ6T · pith_short_8: LTYGAJAS

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/LTYGAJASFQKQNQ6TG2P3ZXX37U \
  | 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: 5cf06024122c1506c3d3369fbcdefbfd116fb686ffdc7188e61b5741fcb9e194

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e97747b82e53132afae25fc9011d729d22372ba6d1725f41af49edaaf39d4e99",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL",
      "cs.CY"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-06-30T13:35:56Z",
    "title_canon_sha256": "3008860709b0975531ce54ed810d55cdbb430a69e0b2876a7f355e4501181e9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.23845",
    "kind": "arxiv",
    "version": 1
  }
}