Pith Number

pith:VE7YB4QM

pith:2025:VE7YB4QMSVTLLRI4O7IOAVPM2W

not attested not anchored not stored refs pending

Understanding sparse autoencoder scaling in the presence of feature manifolds

Eric J. Michaud, Liv Gorton, Tom McGrath

arxiv:2509.02565 v2 · 2025-09-02 · 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{VE7YB4QMSVTLLRI4O7IOAVPM2W}

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

5 papers in Pith

Critical Percolation as a Synthetic Data Model for Interpretability

A Geometric View for Understanding Concept Learning and Neuron Interpretation in Sparse Autoencoders

Why Larger Models Learn More: Effects of Capacity, Interference, and Rare-Task Retention

Subspace-Aware Sparse Autoencoders for Effective Mechanistic Interpretability

Linear-Readout Floors and Threshold Recovery in Computation in Superposition

Receipt and verification

First computed	2026-07-05T12:05:04.228320Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a93f80f20c9566b5c51c77d0e055ecd5a80134d9af7070cca60272de5c8a8e13

Aliases

arxiv: 2509.02565 · arxiv_version: 2509.02565v2 · doi: 10.48550/arxiv.2509.02565 · pith_short_12: VE7YB4QMSVTL · pith_short_16: VE7YB4QMSVTLLRI4 · pith_short_8: VE7YB4QM

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/VE7YB4QMSVTLLRI4O7IOAVPM2W \
  | 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: a93f80f20c9566b5c51c77d0e055ecd5a80134d9af7070cca60272de5c8a8e13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75b98eda3be66944f5bc40ce297f646b56a29ee40330fbcabee98d7724e58afc",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-09-02T17:59:50Z",
    "title_canon_sha256": "f2ba6397cee0b3130c25904fde99c0c3b84f9e8e1f4bc6fba9673628e25445dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.02565",
    "kind": "arxiv",
    "version": 2
  }
}