Pith Number

pith:VSTYNZ3G

pith:2025:VSTYNZ3GVS3574RCUFN3LLVV4R

not attested not anchored not stored refs pending

Interpretable Embeddings with Sparse Autoencoders: A Data Analysis Toolkit

Lewis Smith, Lisa Dunlap, Neel Nanda, Nick Jiang, Xiaoqing Sun

arxiv:2512.10092 v2 · 2025-12-10 · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VSTYNZ3GVS3574RCUFN3LLVV4R}

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

4 papers in Pith

Do Sparse Autoencoders Learn Meaningful Concept Hierarchies?

Anatomy of Post-Training: Using Interpretability to Characterize Data and Shape the Learning Signal

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

In your own words: computationally identifying interpretable themes in free-text survey data

Receipt and verification

First computed	2026-07-24T00:23:06.492202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aca786e766acb7dff222a15bb5aeb5e45f6a3fe3fad1606816bc484439895152

Aliases

arxiv: 2512.10092 · arxiv_version: 2512.10092v2 · doi: 10.48550/arxiv.2512.10092 · pith_short_12: VSTYNZ3GVS35 · pith_short_16: VSTYNZ3GVS3574RC · pith_short_8: VSTYNZ3G

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/VSTYNZ3GVS3574RCUFN3LLVV4R \
  | 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: aca786e766acb7dff222a15bb5aeb5e45f6a3fe3fad1606816bc484439895152

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1aa94c1bd47c01cbb80ec85f8653350fbd6ee97769d669e7336dd8297c59009e",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2025-12-10T21:26:24Z",
    "title_canon_sha256": "7cdc26b7ce018a6f600d23d193cbd2d78ee947bc68aac5cc70b072a8fce293b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.10092",
    "kind": "arxiv",
    "version": 2
  }
}