Complete, unannotated statutory corpus and directed cross-reference citation graph for the State of Iowa across all 16 active titles and 1,282 distinct chapters, cryptographically sealed from official Iowa Legislature Legislative Services Agency (legis.iowa.gov) sources.
Upon payment of the one-time $2,000 USD license fee, Keystone Data Services LLC, d/b/a Keystone Legal Data ("Licensor"), grants Customer ("Licensee") a perpetual, non-exclusive, non-transferable, worldwide enterprise license to store, query, index, and use the 10/2026 Edition Single-Snapshot Dataset of the Code of Iowa (including all delivered Bronze source files, Silver OASIS Akoma Ntoso 3.0 XML files, Gold Parquet tables, directed citation graph schemas, and cryptographic manifests, collectively the "Licensed Dataset"). Future statutory editions or legislative updates are sold separately as independent snapshots.
Licensee may freely integrate the Licensed Dataset into internal data warehouses, legal research platforms, retrieval-augmented generation (RAG) pipelines, vector databases, knowledge graphs, and machine learning or large language model (LLM) training, fine-tuning, and inference systems, and may display statutory excerpts and citation outputs to end users in the ordinary course of Licensee's products and services.
While the underlying enacted statutory text of the State of Iowa is in the public domain under the government edicts doctrine, the normalized schema, structural subsection shredding, OASIS Akoma Ntoso 3.0 XML markup, resolved citation graph topology, and cryptographic lineage manifests are proprietary data engineering deliverables of Licensor. Licensee may not resell, sublicense, publish, or redistribute the Licensed Dataset in bulk or as a standalone statutory data product or competing data catalog.
Every record in the Licensed Dataset is cryptographically sealed via SHA-256 to its source legislative payload as published by the official legislative authority as of the snapshot date. The Licensed Dataset is provided "AS IS" for analytical and informational purposes and does not constitute legal advice. Licensor's aggregate liability under this Agreement shall not exceed the license fee paid for the snapshot.
Verbatim section payloads captured from the Iowa Legislature Legislative Services Agency (legis.iowa.gov) with wire-level SHA-256 hashes and structural hierarchy metadata.
Normalized, schema-validated OASIS LegalDocML (Akoma Ntoso 3.0) XML documents containing strictly enacted statutory text, subsection hierarchy, and session-law history citations.
Snappy-compressed Apache Parquet tables (sections, subsections, edges) and pre-indexed DuckDB analytical catalog ready for immediate SQL, Polars, PyArrow, or RAG/LLM ingestion.
| Artifact / Archive | Layer / Format | Records | Size | SHA-256 Cryptographic Seal |
|---|---|---|---|---|
| sections.parquet | Gold Columnar Table (Snappy Parquet) | 26,831 | 20.91 MB | 6ea1c4a051a291d1dc35687f9dfcfc3ba0e98db2ad303043bad7431e31ac681b |
| subsections.parquet | Gold Hierarchical Paragraphs (Snappy Parquet) | 146,021 | 18.89 MB | 708ed28384f7e09220d19ff239430a1a8086886d4072bc3142950483be4e0ee9 |
| edges.parquet | Gold Directed Citation Graph (Snappy Parquet) | 26,629 | 391.16 KB | 3659452cb00ae853980b08cb4a04ed3ca12b8c1b6860496c862fd1d07f40a29e |
| keystone_iacode_bronze_2026-10.tar.gz | Complete Bronze Source Archive (Raw Payloads + Manifests) | 26,831 files | 17.32 MB | 3dfae24832c3aa88a8afb7daf6c2e35ee9ece70d89c34de57e604ee9a890cf94 |
| keystone_iacode_silver_2026-10.tar.gz | Complete Silver OASIS AKN 3.0 XML Archive (XML + XSD + Manifests) | 26,831 docs | 23.57 MB | 2735ce60282ba8ee12108daa1f00f62688995d3232d04ce1853f7ffe0e7c0d44 |
| keystone_iacode_gold_2026-10.tar.gz | Complete Gold Release Archive (Parquet + Manifests) | 199,481 | 34.53 MB | e20addeaacdf6090a1f5b74a35d5921c7225a40d59975166d3c62d0aa7b3272b |
| keystone_iacode_titleI_sample.tar.gz | Title I Sample Showcase Slice (Title I — State Sovereignty and Management (Ch. 1 - 38D)) | 2,437 secs | 3.19 MB | e74e2e4b22fe2279a992c6d14b502f06d1593051465e2cbdbad2ab41836273b6 |
<?xml version='1.0' encoding='utf-8'?>
<akomaNtoso xmlns="http://docs.oasis-open.org/legaldocml/ns/akn/3.0"
xmlns:meta="https://pipeline.local/schema/meta">
<act name="statute">
<meta>
<identification source="#pipeline">
<FRBRWork>
<FRBRthis value="/us-ia/act/iacode/title-i/section-1.16"/>
<FRBRdate date="2026-10-17" name="snapshot"/>
<FRBRcountry value="US-IA"/>
</FRBRWork>
</identification>
<proprietary source="#pipeline">
<meta:source_html_sha256>36c285004ec6a6a1...bde62</meta:source_html_sha256>
<meta:doc_id>iacode-1.16</meta:doc_id>
<meta:jurisdiction>US-IA</meta:jurisdiction>
<meta:container_id>I</meta:container_id>
<meta:chapter_id>1</meta:chapter_id>
<meta:chapter_name>SOVEREIGNTY AND JURISDICTION OF THE STATE</meta:chapter_name>
<meta:history_note>84 Acts, ch 1024, §1</meta:history_note>
</proprietary>
</meta>
<body>
<section eId="sec_1.16">
<num>1.16</num>
<heading>Concurrent jurisdiction over lands and waters dedicated to national park purposes.</heading>
<paragraph eId="sec_1_16__para_1" class="indent-1">
<num>1.</num>
<content>
<p>1. Concurrent legislative jurisdiction over crimes and
offenses under the laws of the state of Iowa is ceded to the
United States over and within all lands and waters within the
state dedicated to national park purposes.</p>
</content>
</paragraph>
<paragraph eId="sec_1_16__para_2" class="indent-1">
<num>2.</num>
<content>
<p>2. The concurrent jurisdiction ceded by subsection 1 is vested
upon acceptance by the United States by and through its
appropriate officials and shall continue so long as the lands
and waters within the designated a...</p>
</content>
</paragraph>
<!-- 2 additional paragraph(s) omitted for brevity -->
</section>
</body>
</act>
</akomaNtoso>
// 1. sections.parquet (Primary Key: doc_id = "iacode-1.16")
{
"jurisdiction": "US-IA",
"doc_id": "iacode-1.16",
"universal_doc_id": "US-IA-iacode-1.16",
"container_type": "title",
"container_id": "I",
"container_name": "Title I — State Sovereignty and Management (Ch. 1 - 38D)",
"title": 1,
"chapter_id": "1",
"chapter_name": "SOVEREIGNTY AND JURISDICTION OF THE STATE",
"subchapter_id": "1",
"subchapter_name": "SOVEREIGNTY AND JURISDICTION OF THE STATE",
"section_number": "1.16",
"heading": "Concurrent jurisdiction over lands and waters dedicated to national park purposes.",
"paragraph_count": 4,
"history_note": "84 Acts, ch 1024, §1",
"source_html_sha256": "36c285004ec6a6a13412e2cb15d2857218f821b1b5938ac8b85abdc28c6bde62",
"akn_sha256": "532863986dca870ac0a2d28004bcdf937b9f7d29697bd1695f7c01dd787bca65"
}
// 2. subsections.parquet (4 rows for iacode-1.16)
{
"doc_id": "iacode-1.16",
"paragraph_eid": "sec_1_16__para_1",
"paragraph_seq": 1,
"enum_label": "1.",
"indent_level": 1,
"text": "1. Concurrent legislative jurisdiction over crimes and offenses under the laws of the state of Iowa is ceded to the United States over and within all lands and waters within the state dedicated to national park purposes."
}
// 3. edges.parquet (Sample Directed Citation Edge in Code of Iowa)
{
"jurisdiction": "US-IA",
"source_doc_id": "iacode-1.11",
"source_section": "1.11",
"target_doc_id": "iacode-1.4",
"target_section": "1.4",
"target_title": 1,
"citation_count": 1
}
| Table | Column Name | Parquet Type | Description |
|---|---|---|---|
| sections.parquet | jurisdiction / doc_id / universal_doc_id | VARCHAR | Jurisdiction code (US-IA), collection-scoped primary key (iacode-1.16), and global key. |
| container_type / container_id / container_name | VARCHAR | Top-level statutory container metadata (e.g., title, I, Title I — State Sovereignty and Management (Ch. 1 - 38D)). |
|
| chapter_id / chapter_name | VARCHAR | Intermediate chapter/article identifier and official heading (100% populated across all 26,831 sections). | |
| section_number / heading | VARCHAR | Canonical section number (e.g., 1.16) and cleaned catchline heading. |
|
| full_text | VARCHAR | Complete, newline-delimited statutory text of the section (strictly enacted text only). | |
| history_note | VARCHAR | Legislative session-law enactment and amendment history citations (26,831 / 26,831 sections populated). | |
| paragraph_count | INT64 | Number of child subsection paragraphs shredded into subsections.parquet. |
|
| source_html_sha256 / akn_sha256 | VARCHAR | Cryptographic SHA-256 digests linking the Gold row to its exact Silver XML and Bronze raw payload. | |
| subsections.parquet | paragraph_eid / paragraph_seq | VARCHAR / INT64 | OASIS AKN 3.0 element ID (sec_1_16__para_1) and deterministic 1-based sequence order within the section. |
| enum_label / indent_level | VARCHAR / INT64 | Extracted structural enumerator (e.g., (a), (1), (A)) and hierarchical indentation depth (1–6). |
|
| text | VARCHAR | Cleaned text of the individual statutory subsection or paragraph. | |
| edges.parquet | source_doc_id / target_doc_id | VARCHAR | Directed citation graph edge resolving in-text statutory references from citing section to cited target section. |
| source_section / target_section / citation_count | VARCHAR / INT64 | Canonical section numbers and frequency count of cross-references between the pair. |
| Title | Title Heading | Chapters | Sections |
|---|---|---|---|
| Title I | Title I — State Sovereignty and Management (Ch. 1 - 38D) | 116 | 2,437 |
| Title II | Title II — Elections and Official Duties (Ch. 39 - 79) | 43 | 922 |
| Title III | Title III — Public Services and Regulation (Ch. 80 - 122C) | 65 | 1,171 |
| Title IV | Title IV — Public Health (Ch. 123 - 158) | 103 | 1,647 |
| Title V | Title V — Agriculture (Ch. 159 - 215A) | 86 | 1,470 |
| Title VI | Title VI — Human Services (Ch. 216 - 255A) | 72 | 1,538 |
| Title VII | Title VII — Education, History, and Culture (Ch. 256 - 305B) | 77 | 1,438 |
| Title VIII | Title VIII — Transportation (Ch. 306 - 330B) | 64 | 1,735 |
| Title IX | Title IX — Local Government (Ch. 331 - 420) | 64 | 1,416 |
| Title X | Title X — Financial Resources (Ch. 421 - 454) | 50 | 1,068 |
| Title XI | Title XI — Natural Resources (Ch. 455 - 485) | 64 | 1,965 |
| Title XII | Title XII — Business Entities (Ch. 486 - 504C) | 25 | 1,511 |
| Title XIII | Title XIII — Commerce (Ch. 505 - 554I) | 155 | 3,517 |
| Title XIV | Title XIV — Property (Ch. 555 - 594A) | 60 | 683 |
| Title XV | Title XV — Judicial Branch and Judicial Procedures (Ch. 595 - 686D) | 118 | 2,917 |
| Title XVI | Title XVI — Criminal Law and Procedure (Ch. 687 - 916) | 120 | 1,396 |
| Total (16 Titles) | Complete Code of Iowa Corpus | 1,282 | 26,831 |