Pith Number

pith:CPMZVFPU

pith:2026:CPMZVFPUZFZVYB5QOJI3AX6H2S

not attested not anchored not stored refs pending

Measuring Behavior Portability in Large Language Models

James A. Evans, Nadav Kunievsky, Tianjia Dong

arxiv:2606.22797 v1 · 2026-06-22 · cs.AI · cs.CY · cs.GT · econ.GN · q-fin.EC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CPMZVFPUZFZVYB5QOJI3AX6H2S}

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	2026-06-23T02:13:59.533375Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13d99a95f4c9735c07b07251b05fc7d48ea02a1597c9bc091d98ffb5d3f69b9e

Aliases

arxiv: 2606.22797 · arxiv_version: 2606.22797v1 · doi: 10.48550/arxiv.2606.22797 · pith_short_12: CPMZVFPUZFZV · pith_short_16: CPMZVFPUZFZVYB5Q · pith_short_8: CPMZVFPU

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/CPMZVFPUZFZVYB5QOJI3AX6H2S \
  | 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: 13d99a95f4c9735c07b07251b05fc7d48ea02a1597c9bc091d98ffb5d3f69b9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f40a74c52f812bad258a96a95ec77b5c7e5f1186773e65438ffd129a48d05c04",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.GT",
      "econ.GN",
      "q-fin.EC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-06-22T03:16:34Z",
    "title_canon_sha256": "ce0e3f4104c37c7193d3d5d57e67c748e7eb5b3f2f836e2c8ac268ed5cbf44b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.22797",
    "kind": "arxiv",
    "version": 1
  }
}