Pith Number

pith:X6WU3FC3

pith:2026:X6WU3FC3LRBFDROGX5BWGJDWFJ

not attested not anchored not stored refs pending

Sparse Autoencoders Reveal Interpretable and Steerable Features in VLA Models

Aiden Swann, Hugo Buurmeijer, Lachlain McGranahan, Mac Schwager, Monroe Kennedy III

arxiv:2603.19183 v2 · 2026-03-19 · cs.RO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X6WU3FC3LRBFDROGX5BWGJDWFJ}

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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

Point Tracking Improves World Action Models

Event-Grounded Sparse Autoencoders for Vision-Language-Action Policies

Receipt and verification

First computed	2026-06-09T01:05:16.228428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfad4d945b5c4251c5c6bf436324762a41d9711d26e433b608d642156cbcfe47

Aliases

arxiv: 2603.19183 · arxiv_version: 2603.19183v2 · doi: 10.48550/arxiv.2603.19183 · pith_short_12: X6WU3FC3LRBF · pith_short_16: X6WU3FC3LRBFDROG · pith_short_8: X6WU3FC3

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/X6WU3FC3LRBFDROGX5BWGJDWFJ \
  | 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: bfad4d945b5c4251c5c6bf436324762a41d9711d26e433b608d642156cbcfe47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e3eb0e5baa16c94e2bac73ec931f45b8c5e471dcda05351a65cb4b3abda3d53",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2026-03-19T17:42:05Z",
    "title_canon_sha256": "8cc1cde2d0f04adc9fc255d691ced9cb4c2f720e82342950e8e102c69c52f0c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.19183",
    "kind": "arxiv",
    "version": 2
  }
}