Pith Number

pith:INK6UH3L

pith:2025:INK6UH3LZ2YHYAWKIGQZHE4PNW

not attested not anchored not stored refs pending

Inference-Time Decomposition of Activations (ITDA): A Scalable Approach to Interpreting Large Language Models

Neel Nanda, Noura Al Moubayed, Patrick Leask

arxiv:2505.17769 v2 · 2025-05-23 · 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{INK6UH3LZ2YHYAWKIGQZHE4PNW}

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

2 papers in Pith

ICA Lens: Interpreting Language Models Without Training Another Dictionary

Subspace-Aware Sparse Autoencoders for Effective Mechanistic Interpretability

Receipt and verification

First computed	2026-07-05T11:20:12.356045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4355ea1f6bceb07c02ca41a193938f6d9393a84dda7825e6496723b0e522cc79

Aliases

arxiv: 2505.17769 · arxiv_version: 2505.17769v2 · doi: 10.48550/arxiv.2505.17769 · pith_short_12: INK6UH3LZ2YH · pith_short_16: INK6UH3LZ2YHYAWK · pith_short_8: INK6UH3L

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/INK6UH3LZ2YHYAWKIGQZHE4PNW \
  | 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: 4355ea1f6bceb07c02ca41a193938f6d9393a84dda7825e6496723b0e522cc79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e59e528737749b37119c7a8091de2bd64f1fe69cbd6146345d72ee7c27a2d9be",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-05-23T11:41:41Z",
    "title_canon_sha256": "769b677372b54a618e12c604334cf1b0dbf447027808e04f1590ab6f54966e9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.17769",
    "kind": "arxiv",
    "version": 2
  }
}