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Add open processes as a part of the dissemination process page, it iS very important

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Diego Ripley
2026-02-07 20:31:39 -05:00
parent 1a64ac88bc
commit 8e64b590c9
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content/docs/dissemination/_index.md
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@@ -12,7 +12,6 @@ We prioritize interoperability, long-term preservation, and decentralized resili
## High-Level Overview ## High-Level Overview
```mermaid ```mermaid
flowchart TD flowchart TD
subgraph mirrors [Mirrors] subgraph mirrors [Mirrors]
SourceCoop[Source Cooperative] SourceCoop[Source Cooperative]
@@ -59,23 +58,40 @@ flowchart TD
Torrent a11@--> Systems Torrent a11@--> Systems
a11@{animate: true, animation: fast} a11@{animate: true, animation: fast}
click Metadata "https://stac-utils.github.io/stac-geoparquet/latest/spec/stac-geoparquet-spec/" _blank click Metadata "[https://stac-utils.github.io/stac-geoparquet/latest/spec/stac-geoparquet-spec/](https://stac-utils.github.io/stac-geoparquet/latest/spec/stac-geoparquet-spec/)" _blank
click Zenodo "https://zenodo.org/communities/dataforcanada/" _blank click Zenodo "[https://zenodo.org/communities/dataforcanada/](https://zenodo.org/communities/dataforcanada/)" _blank
click SourceCoop "https://source.coop/dataforcanada/" _blank click SourceCoop "[https://source.coop/dataforcanada/](https://source.coop/dataforcanada/)" _blank
``` ```
## 🏗️ Open Processing Architecture
We believe that true open data requires open production. To ensure the longevity and resilience of Canada's data infrastructure, we treat our data pipelines as **open source software artifacts**. We provide the "blueprints" alongside the data, allowing any user to verify our work or rebuild the dataset from scratch on their own infrastructure.
### The Blueprint Model
Our processing strategy relies on three immutable components to guarantee transparency:
1. **Build Manifests:** Every dataset version is accompanied by a strict manifest. This locks the exact "ingredients" used: the cryptographic hashes of the raw source files, the specific Git commit of the processing code, and the configuration parameters.
2. **Environment Definitions:** Rather than opaque binaries, we publish the exact **Infrastructure as Code (IaC)** definitions (e.g., Dockerfiles). This allows users to inspect the system context GDAL versions, libraries, and dependencies, and build the environment themselves.
3. **Deterministic Builds:** By combining a *Build Manifest* with our *Environment Definitions*, any user can execute a **deterministic build**. This process guarantees a bit-for-bit identical copy of the official Data for Canada artifact, ensuring that the pipeline is independent of our specific servers.
**Mirrored Source Artifacts:**
Crucially, we do not rely solely on external version control systems like GitHub, which may change or disappear. A complete snapshot of the processing code, environment definitions, and manifests is bundled with every data release. These source artifacts are replicated across **Source Cooperative, Zenodo, the Internet Archive, and Data for Canada infrastructure**, ensuring that the *method* of creation is preserved with the same redundancy as the *result*.
## Dissemination Process ## Dissemination Process
Once data products reach a production-ready state, the workflow is as follows: Once data products reach a production-ready state, the workflow is as follows:
- **Cloud-Native First:** Priority is given to performant, system-to-system file formats (e.g., Parquet) to enable highly performant applications. * **Cloud-Native First:** Priority is given to performant, system-to-system file formats (e.g., Parquet) to enable highly performant applications.
- **Persistent Identification & Cataloging:** Every dataset version will be assigned a DOI for citation and immutability. * **Persistent Identification & Cataloging:** Every dataset version will be assigned a DOI for citation and immutability.
- The endpoint `https://data-01.dataforcanada.org/processed/` will strictly serve the **latest** version of a dataset. * The endpoint `https://data-01.dataforcanada.org/processed/` will strictly serve the **latest** version of a dataset.
- Global metadata will be aggregated into a single, queryable [STAC GeoParquet](https://stac-utils.github.io/stac-geoparquet/latest/spec/stac-geoparquet-spec/) file. This catalog will track all versions and DOIs, directing users to our multi-tier storage network: * Global metadata will be aggregated into a single, queryable [STAC GeoParquet](https://stac-utils.github.io/stac-geoparquet/latest/spec/stac-geoparquet-spec/) file. This catalog will track all versions and DOIs, directing users to our multi-tier storage network:
- **[Source Cooperative](https://source.coop/dataforcanada)** serves as our **primary mirror** for all datasets, including large-scale products like orthoimagery (see [Funding and Governance](https://docs.source.coop/#funding-and-governance)). * **[Source Cooperative](https://source.coop/dataforcanada)** serves as our **primary mirror** for all datasets, including large-scale products like orthoimagery (see [Funding and Governance](https://docs.source.coop/#funding-and-governance)).
- **[Zenodo](https://zenodo.org/communities/dataforcanada/)** serves as our repository for **long-term preservation** and provides a mirror for users in Europe (see [Funding](https://about.zenodo.org/infrastructure/)). * **[Zenodo](https://zenodo.org/communities/dataforcanada/)** serves as our repository for **long-term preservation** and provides a mirror for users in Europe (see [Funding](https://about.zenodo.org/infrastructure/)).
- **[The Internet Archive](https://archive.org)** is utilized **strategically** for specific datasets to minimize load on their limited infrastructure (see [Funding](https://projects.propublica.org/nonprofits/organizations/943242767)). * **[The Internet Archive](https://archive.org)** is utilized **strategically** for specific datasets to minimize load on their limited infrastructure (see [Funding](https://projects.propublica.org/nonprofits/organizations/943242767)).
- **Decentralized Distribution:** We will pilot BitTorrent to maximize infrastructure resilience. By leveraging [HTTP Web Seeding (BEP 19)](https://www.bittorrent.org/beps/bep_0019.html), torrents will be seeded simultaneously by Source Cooperative, Zenodo, the Data for Canada infrastructure, and community peers, ensuring high availability without a single point of failure. Current laboratory work is available on the [dataforcanada/decentralized-distribution-labs](https://github.com/dataforcanada/decentralized-distribution-labs) repo.
* **Decentralized Distribution:** We will pilot BitTorrent to maximize infrastructure resilience. By leveraging [HTTP Web Seeding (BEP 19)](https://www.bittorrent.org/beps/bep_0019.html), torrents will be seeded simultaneously by Source Cooperative, Zenodo, the Data for Canada infrastructure, and community peers, ensuring high availability without a single point of failure. Current laboratory work is available on the [dataforcanada/decentralized-distribution-labs](https://github.com/dataforcanada/decentralized-distribution-labs) repo.
## Work in the Lab: Smart Nodes ## Work in the Lab: Smart Nodes
@@ -83,8 +99,8 @@ To further democratize access and ensure the persistence of Canada’s open data
A smart node functions as a "set-it-and-forget-it" volunteer server, an automated library branch for our data infrastructure. A smart node functions as a "set-it-and-forget-it" volunteer server, an automated library branch for our data infrastructure.
- **Automated Mirroring:** Unlike a standard download, a smart node automatically synchronizes with our central catalog. It intelligently fetches new or "at-risk" datasets to ensure they remain available even if the central portal experiences downtime. * **Automated Mirroring:** Unlike a standard download, a smart node automatically synchronizes with our central catalog. It intelligently fetches new or "at-risk" datasets to ensure they remain available even if the central portal experiences downtime.
- **Volunteer-Powered Resilience:** This model allows partner institutions (universities, research labs) and public volunteers to donate bandwidth and storage. By running a smart node, contributors actively protect vital Canadian datasets from being lost or gated behind paywalls. * **Volunteer-Powered Resilience:** This model allows partner institutions (universities, research labs) and public volunteers to donate bandwidth and storage. By running a smart node, contributors actively protect vital Canadian datasets from being lost or gated behind paywalls.
- **Dynamic Storage Management:** The node software monitors network health, automatically prioritizing rare data to maintain high availability across the entire Data for Canada ecosystem. * **Dynamic Storage Management:** The node software monitors network health, automatically prioritizing rare data to maintain high availability across the entire Data for Canada ecosystem.
We are currently refining the concepts from [smart-node-transmission](https://github.com/academictorrents/smartnode-transmission) to work seamlessly with our STAC GeoParquet catalog, enabling a fully decentralized data mesh for Canadian geospatial information. We are currently refining the concepts from [smart-node-transmission](https://github.com/academictorrents/smartnode-transmission) to work seamlessly with our STAC GeoParquet catalog, enabling a fully decentralized data mesh for Canadian geospatial information.