Pith Number

pith:VDUVT3T6

pith:2025:VDUVT3T63W225YQ55LTAL2VQ4D

not attested not anchored not stored refs pending

Low-Rank Adapting Models for Sparse Autoencoders

Joshua Engels, Matthew Chen, Max Tegmark

arxiv:2501.19406 v2 · 2025-01-31 · 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{VDUVT3T63W225YQ55LTAL2VQ4D}

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

1 paper in Pith

Resa: Transparent Reasoning Models via SAEs

Receipt and verification

First computed	2026-07-05T11:10:04.385699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8e959ee7eddb5aee21deae605eab0e0d10fd6c16872e3ea66b936e6ef63d010

Aliases

arxiv: 2501.19406 · arxiv_version: 2501.19406v2 · doi: 10.48550/arxiv.2501.19406 · pith_short_12: VDUVT3T63W22 · pith_short_16: VDUVT3T63W225YQ5 · pith_short_8: VDUVT3T6

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/VDUVT3T63W225YQ55LTAL2VQ4D \
  | 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: a8e959ee7eddb5aee21deae605eab0e0d10fd6c16872e3ea66b936e6ef63d010

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ffcdf01a24a34b13d9baf6eae2b82b1930b192ecff69d12de9dda62d391f0e7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-01-31T18:59:16Z",
    "title_canon_sha256": "827c9cd142f925ef2cafeb40e3e193826aab8eb987f3eeac21e42ed084e7abb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.19406",
    "kind": "arxiv",
    "version": 2
  }
}