Pith Number

pith:KFRPDIYD

pith:2024:KFRPDIYDSJEGHA4EJK4HV6EONW

not attested not anchored not stored refs pending

NNsight and NDIF: Democratizing Access to Open-Weight Foundation Model Internals

Aaron Mueller, Adam Belfki, Alexander R. Loftus, Arjun Guha, Arnab Sen Sharma, Byron C. Wallace, Caden Juang, Can Rager, Carla Brodley, David Bau, Dmitrii Troitskii, Eric Todd, Francesca Lucchetti, Jaden Fiotto-Kaufman, Jannik Brinkmann, Jonathan Bell, Koyena Pal, Michael Ripa, Nikhil Prakash, Samuel Marks

arxiv:2407.14561 v4 · 2024-07-18 · cs.LG · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KFRPDIYDSJEGHA4EJK4HV6EONW}

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

7 papers in Pith

One Lens, Many Worlds : A Capability-Typed Interface for World-Model Interpretability

Vision-Default, Prior-Override: Causal Mechanisms of Perception-Knowledge Conflict in Vision-Language Models

Same Payload, Different Channel: Measuring Trust Asymmetry in Tool-Using Language Models

BrainSurgery: Reproducible and Reliable Declarative Weight Manipulations for Model Editing and Upcycling

Enabling Performant and Flexible Model-Internal Observability for LLM Inference

Receipt and verification

First computed	2026-07-05T10:42:36.386452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5162f1a30392486383844ab87af88e6d90d1eb26446a3e48dc465f2bcf124758

Aliases

arxiv: 2407.14561 · arxiv_version: 2407.14561v4 · doi: 10.48550/arxiv.2407.14561 · pith_short_12: KFRPDIYDSJEG · pith_short_16: KFRPDIYDSJEGHA4E · pith_short_8: KFRPDIYD

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/KFRPDIYDSJEGHA4EJK4HV6EONW \
  | 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: 5162f1a30392486383844ab87af88e6d90d1eb26446a3e48dc465f2bcf124758

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7ed2d7c72fb28548e6c8c7a1e27c76f7ebc099b23c0a07d088ab96dd398fd4d",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2024-07-18T17:59:01Z",
    "title_canon_sha256": "f46c4932df2537497dbf4b01d8f44da18aac48675a939846e0424f347fee63a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2407.14561",
    "kind": "arxiv",
    "version": 4
  }
}