Freebase RDF Final Dump - 2015-08-09

This repository provides a preservation mirror of the final regular Freebase RDF dump published by Google on August 9, 2015.

The uploaded file retains its historical alias:

freebase-rdf-latest.gz

It has been verified to be byte-for-byte identical to the explicitly dated final dump:

freebase-rdf-2015-08-09-00-01.gz

Both compressed files have the same exact size and the same SHA-256 checksum:

b3d21c80dc512c8ed3c37279516340ef7a77027d593932c7c3fb22d40dfd47f4

This is an independent community preservation mirror. It is not an official Google, Freebase, Microsoft, or Hugging Face release.

File information

Field	Value
Repository filename	freebase-rdf-latest.gz
Canonical dated filename	freebase-rdf-2015-08-09-00-01.gz
Snapshot date	2015-08-09
File size	32,191,685,487 bytes
Compression	Gzip
RDF serialization	N-Triples
Text encoding	UTF-8
SHA-256	b3d21c80dc512c8ed3c37279516340ef7a77027d593932c7c3fb22d40dfd47f4
Original publisher	Google / Freebase
Verification	Byte-for-byte identical to the dated final dump
Modification status	Redistributed without modification

A checksum is also provided in:

SHA256SUMS

Snapshot identification

The file in this repository has been cryptographically verified against the explicitly dated final Freebase RDF dump:

freebase-rdf-2015-08-09-00-01.gz

The following properties were compared for both compressed files:

exact file size; SHA-256 checksum of the complete Gzip file.

Both files are exactly 32,191,685,487 bytes and have the same SHA-256 checksum:

b3d21c80dc512c8ed3c37279516340ef7a77027d593932c7c3fb22d40dfd47f4

Therefore, freebase-rdf-latest.gz is confirmed to be byte-for-byte identical to freebase-rdf-2015-08-09-00-01.gz, the final regular Freebase RDF dump dated August 9, 2015.

The original freebase-rdf-latest.gz filename is preserved in this repository because it was the filename used by Google's historical official download URL.

Provenance

Two independently named copies of the dump were obtained:

1. freebase-rdf-latest.gz, retrieved through Xunlei cloud offline retrieval using Google's historical official download URL;
2. freebase-rdf-2015-08-09-00-01.gz, extracted from Microsoft's historical FastRDFStore-data.zip package.

The two files were compared locally and found to have identical sizes and identical SHA-256 checksums. They are therefore the same compressed file, not merely RDF dumps with equivalent contents.

The historical Google download URL was:

https://commondatastorage.googleapis.com/freebase-public/rdf/freebase-rdf-latest.gz

The original endpoint is no longer reliably accessible. This repository preserves the exact historical file for archival use and research reproducibility.

Dataset description

Freebase was a large collaborative knowledge base containing entities, relations, schema definitions, identifiers, and literal values.

The dump is serialized as RDF N-Triples. Each record generally follows this form:

<subject> <predicate> <object> .

Freebase identifiers are represented in the RDF namespace. For example, a Freebase MID such as:

/m/012rkqx

is represented in RDF as:

http://rdf.freebase.com/ns/m.012rkqx

The object may be another Freebase entity, a schema item, an RDF resource, or a literal such as a string, number, Boolean value, or date.

Repository contents

.
├── README.md 
├── SHA256SUMS 
└── freebase-rdf-latest.gz

This repository contains the raw compressed RDF dump. It does not provide train, validation, or test splits, and it has not been converted to Parquet, JSON, SQLite, or another processed representation.

Download

Using the Hugging Face CLI:

hf download alex999819/freebase \
  freebase-rdf-latest.gz \
  SHA256SUMS \
  --repo-type dataset \
  --local-dir .

The file can also be downloaded independently:

hf download alex999819/freebase \
  freebase-rdf-latest.gz \
  --repo-type dataset \
  --local-dir .

Checksum verification

On Linux:

sha256sum -c SHA256SUMS

Alternatively:

sha256sum freebase-rdf-latest.gz

On Windows PowerShell:

Get-FileHash ".\freebase-rdf-latest.gz" -Algorithm SHA256

The calculated hash must match the SHA-256 value published in this data card and in SHA256SUMS.

Gzip integrity verification

On Linux:

gzip -t freebase-rdf-latest.gz
echo $?

An exit code of 0 indicates that the Gzip stream passed its integrity check.

Using 7-Zip on Windows:

& "C:\Program Files\7-Zip\7z.exe" t ".\freebase-rdf-latest.gz"

A successful test should report:

Everything is Ok

Reading the dump

It is generally unnecessary to fully extract the dump before processing it.

View the first few triples:

gzip -dc freebase-rdf-latest.gz | head

Stream the file in Python:

import gzip
from pathlib import Path

dump_path = Path("freebase-rdf-latest.gz")

with gzip.open(dump_path, mode="rt", encoding="utf-8", errors="replace") as file:
    for line_number, line in enumerate(file, start=1):
        print(line.rstrip())

        if line_number >= 10:
            break

For large-scale processing, read and process the Gzip stream incrementally instead of extracting the entire uncompressed dump to disk.

License

The Freebase data dumps were distributed under the Creative Commons Attribution 2.5 Generic license:

https://creativecommons.org/licenses/by/2.5/

Users must provide appropriate attribution when redistributing or using the dataset.

Suggested attribution:

Google, Freebase Data Dumps

Original documentation:

https://developers.google.com/freebase

This repository preserves the original license and does not impose additional restrictions.

Citation

A general citation for the original dataset is:

Google, Freebase Data Dumps,
https://developers.google.com/freebase

BibTeX:

@misc{google_freebase_data_dumps,
  author       = {Google},
  title        = {Freebase Data Dumps},
  howpublished = {\url{https://developers.google.com/freebase}},
  note         = {Historical Freebase RDF data dump}
}

Limitations and responsible use

Freebase is a historical and discontinued knowledge base. The data is no longer maintained and may contain:

• outdated information;
• incomplete or incorrect facts;
• duplicate or conflicting statements;
• obsolete identifiers and external links;
• historical descriptions that no longer reflect current reality;
• sensitive, offensive, or otherwise problematic literals inherited from historical source data.

Users should not treat the dump as an authoritative source for current facts. Applications involving people, medicine, law, finance, safety, or other high-impact decisions should independently verify all relevant information.

Acknowledgements

Freebase was originally developed by Metaweb and later operated by Google.

The explicitly dated copy used for byte-level verification was preserved in Microsoft's historical FastRDFStore data package.

This repository provides an archival mirror of the final regular Freebase RDF dump dated August 9, 2015.