Pith Number

pith:M2HTKVP7

pith:2025:M2HTKVP7YNL66EKRGWAFBPVW4V

not attested not anchored not stored refs pending

What Does it Mean for a Neural Network to Learn a "World Model"?

Fernanda Vi\'egas, Kenneth Li, Martin Wattenberg

arxiv:2507.21513 v1 · 2025-07-29 · cs.AI · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M2HTKVP7YNL66EKRGWAFBPVW4V}

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	2026-07-05T11:45:01.496092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

668f3555ffc357ef1151358050beb6e5572bc7ca63ff58bb5ededa7c0b76aa37

Aliases

arxiv: 2507.21513 · arxiv_version: 2507.21513v1 · doi: 10.48550/arxiv.2507.21513 · pith_short_12: M2HTKVP7YNL6 · pith_short_16: M2HTKVP7YNL66EKR · pith_short_8: M2HTKVP7

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/M2HTKVP7YNL66EKRGWAFBPVW4V \
  | 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: 668f3555ffc357ef1151358050beb6e5572bc7ca63ff58bb5ededa7c0b76aa37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "441535bce7594ac9c634fb69cce483164abe169737306ea4d32e419c3ac7a55b",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2025-07-29T05:30:57Z",
    "title_canon_sha256": "eee2517d57a9566e804d09fab0bbdbf780518f4af6991f27e927cbef88d07c08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.21513",
    "kind": "arxiv",
    "version": 1
  }
}