Pith Number

pith:UICXWBFK

pith:2026:UICXWBFKVOGCTVSSQ3ROGKPKGP

not attested not anchored not stored refs pending

When a Verified World Model Still Loses: Play-Adequacy vs Prediction-Accuracy in LLM-Synthesized Code World Models

Javier Aguilar Mart\'in

arxiv:2607.14169 v1 · 2026-07-15 · cs.AI · 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{UICXWBFKVOGCTVSSQ3ROGKPKGP}

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	2026-07-17T00:20:54.971045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2057b04aaab8c29d65286e2e329ea33ef5fea9df35657fe71f215d8732a67f2

Aliases

arxiv: 2607.14169 · arxiv_version: 2607.14169v1 · doi: 10.48550/arxiv.2607.14169 · pith_short_12: UICXWBFKVOGC · pith_short_16: UICXWBFKVOGCTVSS · pith_short_8: UICXWBFK

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/UICXWBFKVOGCTVSSQ3ROGKPKGP \
  | 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: a2057b04aaab8c29d65286e2e329ea33ef5fea9df35657fe71f215d8732a67f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e22c72aca18b8e93f8e27ec11f7b3fa21f10dc4dd9cd22ba72801b2d9bc23394",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-07-15T08:54:59Z",
    "title_canon_sha256": "a65db1efaf78b4f65aef1e6a40c322761c07efeac4adca24ba5b0d8718563466"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.14169",
    "kind": "arxiv",
    "version": 1
  }
}