Pith Number

pith:P25W5XUJ

pith:2026:P25W5XUJLCEYCUNCAY7MEGIFHG

not attested not anchored not stored refs pending

Multimodal Model Diffing for Feature Discovery and Control

Ashkan Khakzar, Christian Schroeder de Witt, Constantin Venhoff, Hunar Batra, Lachin Naghashyar, Philip Torr, Ronald Clark

arxiv:2608.09928 v1 · 2026-08-10 · cs.CV · cs.AI · cs.CL · 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{P25W5XUJLCEYCUNCAY7MEGIFHG}

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.

Receipt and verification

First computed	2026-08-11T02:25:28.861018Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ebb6ede8958898151a2063ec2190539ab959a8524351569bb2f05d5f38b9d9b

Aliases

arxiv: 2608.09928 · arxiv_version: 2608.09928v1 · doi: 10.48550/arxiv.2608.09928 · pith_short_12: P25W5XUJLCEY · pith_short_16: P25W5XUJLCEYCUNC · pith_short_8: P25W5XUJ

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/P25W5XUJLCEYCUNCAY7MEGIFHG \
  | 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: 7ebb6ede8958898151a2063ec2190539ab959a8524351569bb2f05d5f38b9d9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71fe550a65d9b16c4c24f33b1c525606318ae45d38ef24dc1d13e841933b8630",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-08-10T17:59:30Z",
    "title_canon_sha256": "3040544af5d8537e0c50e6fab7a1d7ba037202478117997e904a3b558ef03aa5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.09928",
    "kind": "arxiv",
    "version": 1
  }
}