OSM Data Offer

Dibber distributes dibber-waytiles — a routing-preserving tile archive built from OpenStreetMap data. It packages OpenStreetMap highway data into offline PMTiles shard archives so ways and routes can be read and drawn without a live map service. The archive as a whole is a Derived Database in the sense of the license below, and this page is its public offer.

The dibber-waytiles Derived Database is offered to third parties under the Open Database License (ODbL) 1.0, on the same terms as the OpenStreetMap data it is derived from. Anyone may receive a copy from the downloads below, use it, modify it, and redistribute it under the ODbL. This page — with the release downloads it links — is the public offer of the distributed Derived Database; a link to a Geofabrik extract of OpenStreetMap alone would not be one.

The current release is always downloadable in full from the tile origin: the current manifest (manifest.json), an immutable manifest copy for the release (manifests/<releaseId>.json), every shard archive (releases/<releaseId>/<shardId>.pmtiles), the per-shard tile index of per-tile checksums (releases/<releaseId>/<shardId>.tileindex.jsonl.gz), and the release notices file (releases/<releaseId>/NOTICE.txt).

Previous releases are retained and offered under the availability and retention policy in section 5; each release's immutable manifest copy keeps the same URL for as long as the release is retained. Every manifest records the release id, build date, builder version, tile format version, the OpenStreetMap data timestamp, the per-source snapshot metadata of section 4, and per-shard SHA-256 checksums, byte lengths and tile counts. Compare the checksums in the manifest with the files you downloaded to verify a release.

The Derived Database is offered under the Open Database License (ODbL) 1.0. If you use it, you must attribute © OpenStreetMap contributors and make clear that the data is available under the ODbL. Data derived from OpenStreetMap, available under the Open Database License (ODbL).

A Produced Work is not the Derived Database: a drawn route, a map rendering, or an analysis you build from the archive is a Produced Work, which you may distribute under terms of your choice as long as the attribution stays with it. The tile archive itself — and any redistribution of it in whole or in substantial part — is the Derived Database and remains offered under the ODbL. Each release ships a NOTICE.txt file restating these terms next to the data.

Every release records its exact source snapshots in its manifest: for each Geofabrik extract, the dated extract URL, the HTTP ETag and Last-Modified values, a SHA-256 checksum of the downloaded file, and the extract's OpenStreetMap data timestamp. Alongside those snapshots, each manifest records the build metadata: release id, builder version, tile format version, and the UTC build date.

Because every release records its exact source snapshots and builder version, the distributed database is auditable and reproducible: anyone can verify which OpenStreetMap data went into a release, and the same sources processed by the same builder reproduce the same archive.

The current release and the previous release are always offered. A superseded release remains downloadable for at least 30 days after it is superseded. Automated retention never deletes a release inside that window, and never deletes the current or the previous release.

Copies you have downloaded are yours to keep: supersession and retention never affect files already on your device. If you need an offer copy of an older release that has passed its window, write to info@dibber.pro naming the release id, and a copy will be provided where one still exists. Superseded releases are reproducible while the inputs are retained: the builder tooling and format documentation are published in the Dibber application repository, and the retained source snapshots recorded per release (section 4) are sufficient to rebuild the archive.

The source data is OpenStreetMap, obtained as Geofabrik extracts. Geofabrik extract data is itself Open Data, available under the ODbL — the same license as OpenStreetMap.

Automated daily extract downloads are within Geofabrik's published usage policy. The dated extract URLs, ETags and checksums recorded per release (section 4) are the source-snapshot record for that build, so the provider-facing provenance of every release is documented next to the data.