Howard CAD 2025 Certified Mineral Dataset ZIP: One-Member Integrity Record

Direct answer for mineral owners

On 2026-08-29, the Howard CAD downloads page linked its 2025 Certified Mineral Roll label to a 25,248,834-byte ZIP whose SHA-256 was 6689f36042fae4befed0175ffa240cbb997081cdbd445e7654f3a4d5f42ca141. The ZIP central directory contained one unencrypted XLSX member, and an integrity test passed. Those controls identify the retrieved container; they do not verify workbook contents, ownership, title, acreage, appraisal, tax, or mineral-rights sale value.

Key takeaways for mineral owners

• The Howard CAD page lists 2026 and 2025 mineral-roll downloads separately; this record covers only the exact 2025 ZIP.
• The retrieved ZIP contained one unencrypted XLSX member in its central directory.
• SHA-256 identifies the complete retrieved ZIP bytes; the member CRC and unzip test check a narrower container-integrity condition.
• The workbook member was not opened, read, queried, or used to reproduce a person, property, account, or row.
• A file label, filename, hash, member inventory, or passing integrity test does not establish ownership, title, acreage, value, tax, offer quality, or a sale decision.

Official-file integrity boundary. This page records one Howard CAD publisher route, one complete 2025 ZIP retrieval, one central-directory inventory, and one container integrity result. It does not open or read the XLSX member; reproduce a row or cell; query a person, property, account, operator, lease, or owner; establish ownership, title, acreage, royalty, appraisal, tax, mineral-rights sale value, offer quality, or legal effect; or recommend a transaction. MRX provides educational information and resources only and does not buy mineral rights.

The official Howard CAD downloads page supplied a precise answer on 2026-08-29: its 2025 Certified Mineral Roll label linked to a 25,248,834-byte ZIP whose SHA-256 was 6689f36042fae4befed0175ffa240cbb997081cdbd445e7654f3a4d5f42ca141. The ZIP central directory contained exactly one unencrypted XLSX member, and unzip -t passed.

That result identifies the retrieved container and its stored member metadata. It does not show what any workbook row says, whether the file is complete or current for a later date, who owns an interest, what a property is appraised for, what tax is due, what mineral rights could sell for, or what an owner should do.

Keep the publisher page and file route together

The Howard Central Appraisal District homepage identifies the publisher. The downloads page then supplies the relationship between a visible link label and the exact file URL.

Source object	Recorded role	What it does not prove
Howard CAD homepage	Publisher and site context	File contents, property facts, ownership, title, value, or tax
Howard CAD downloads page	Visible link labels and destination URLs	That every linked file has the same year, format, scope, or contents
Exact 2025 ZIP	Complete retrieved container bytes	Workbook accuracy, completeness, row meaning, or legal effect
Howard CAD property search	Separate research interface and disclaimer context	A result for any person or property; no query was performed

Preserve both the page URL and the final ZIP URL. A copied file URL without its publisher page loses the visible label and surrounding year context. A copied label without the exact file URL loses the identity of the retrieved bytes.

Preserve the complete ZIP controls

The exact Howard CAD 2025 Certified Mineral Roll ZIP returned these controls during the recorded retrieval:

Control	Recorded value
Publisher host	howardcad.org
Retrieval date	2026-08-29
HTTP result	200
Content type	application/zip
Content length	25,248,834 bytes
Last-Modified	Fri, 08 Aug 2025 19:46:00 GMT
ETag	689653f8-1814442
Range support	bytes
SHA-256	6689f36042fae4befed0175ffa240cbb997081cdbd445e7654f3a4d5f42ca141

The SHA-256 is a fingerprint of the complete downloaded ZIP bytes. A later retrieval with a different hash is a different byte object and needs a separate evidence record. A matching hash proves byte identity with this retrieval; it does not prove authorship, content accuracy, completeness, currentness, privacy status, or legal effect.

Record the one-member inventory without opening it

Only the ZIP central directory and container test were inspected. The XLSX member was not extracted, opened, parsed, searched, or read.

Central-directory control	Recorded value
Member count	1
Member filename	HOWARD_2025Certified_Mineral_AppraisalRoll_Dataset.xlsx
Compression method	Deflated
Encrypted	No
Compressed member size	25,248,554 bytes
Uncompressed member size	25,562,263 bytes
Stored UTC modification time	2025-08-08 14:12:24
CRC	35f6a274
Archive comment	None
unzip -t result	Passed; no archive errors reported

The filename supports a literal filename statement only. It does not establish the workbook schema, fields, number of rows, number of accounts, number of owners, property coverage, values, accuracy, completeness, or legal status.

Keep the three byte counts distinct

This record contains three different size numbers:

1. 25,248,834 bytes is the complete ZIP container returned by the server.
2. 25,248,554 bytes is the compressed size stored for the one XLSX member.
3. 25,562,263 bytes is the member’s uncompressed size recorded in the central directory.

The numbers should not be substituted for one another. The complete ZIP includes container structure in addition to the compressed member. The uncompressed size is metadata for the member after decompression, not the number of records or cells.

Distinguish SHA-256, CRC, and the integrity test

The complete-file SHA-256, member CRC, and passing unzip -t result answer different questions.

Check	Narrow question answered	Boundary
SHA-256	Are these complete ZIP bytes identical to the recorded retrieval?	Does not assess meaning or correctness
Member CRC	Does the decompressed member match the CRC stored in this ZIP?	Does not authenticate the publisher or validate workbook content
unzip -t	Can the tool read the archive structure and test the member without an error?	Does not prove completeness, accuracy, privacy, ownership, title, appraisal, tax, or value

Calling the ZIP valid without naming the check would be too broad. The bounded statement is that this retrieval passed the recorded ZIP integrity test.

Do not mix the 2025 and 2026 links

On 2026-08-29, the downloads page listed a separate 2026 Certified Mineral Roll above the 2025 link. It also listed a separate 2025 real-property roll PDF. Article 261 does not inspect either file.

Year, label, destination, format, byte size, and hash belong to the exact linked object. A newer page entry does not silently update the 2025 ZIP, and the 2025 real-property PDF is not the 2025 mineral dataset ZIP.

Use a fail-closed refresh method

A future reviewer can refresh this record without opening the workbook:

1. Open the official downloads page and record the observation date.
2. Preserve the exact visible label and its final destination URL.
3. Retrieve the complete ZIP without submitting a person or property query.
4. Record HTTP status, content type, byte size, Last-Modified, ETag, and SHA-256.
5. Inspect only the central directory for member count and stored metadata.
6. Run a bounded ZIP integrity test and preserve the exact result.
7. Stop before extraction, workbook parsing, row access, or property application unless a separately reviewed job authorizes those actions.

If any control changes, create a new dated record rather than overwriting the prior observation.

Keep this file record separate from a sale decision

A source-integrity record can help an owner or reviewer locate and distinguish official public files before deeper research. It cannot identify which row, if any, belongs to an owner or tract. It also cannot replace deed, probate, lease, division-order, county-clerk, title, tax, appraisal, or transaction review.

For the broader workflow, use the Texas mineral-rights selling process to separate property identification, authority, diligence, written terms, closing, payment, and recording. Use the Texas CAD Directory Worksheet to preserve the appraisal-district route before property-specific research. The Ector CAD 2026 ZIP Source-Control Record is a separate county, year, file, and evidence package.

The one-member integrity record improves source traceability, information gain, and answer-citation readiness. Those are quality controls, not guarantees of ranking, indexing, answer-engine retrieval, LLM citation, traffic, leads, or revenue.

Frequently asked questions

Where did the Howard CAD 2025 ZIP come from?

The official Howard CAD downloads page linked its 2025 Certified Mineral Roll label to the exact howardcad.org ZIP recorded here.

How many members were in the ZIP?

The central directory contained one member, an unencrypted XLSX file named HOWARD_2025Certified_Mineral_AppraisalRoll_Dataset.xlsx.

Was the XLSX workbook opened or searched?

No. This record stops at complete-ZIP retrieval, central-directory metadata, and a container integrity test.

Does a passing ZIP test prove the workbook is accurate or complete?

No. It shows that the retrieved archive passed the tool check against its stored ZIP structure and CRC. It does not validate row content, completeness, accuracy, currency, or legal effect.

Can this record prove who owns mineral rights in Howard County?

No. Ownership, title, acreage, lease, royalty, appraisal, tax, and transaction questions require their own controlling records and qualified review.

Sources reviewed for this article

• Howard CAD downloads page (accessed 2026-08-29)
• Howard CAD 2025 Certified Mineral Roll ZIP (accessed 2026-08-29)
• Howard Central Appraisal District homepage (accessed 2026-08-29)
• Howard CAD property-search disclaimer (accessed 2026-08-29)