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@@ -4,9 +4,10 @@ description: The Toolkit enters beta software status. Here's how we'll be moving
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author: Basile Simon
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date: 2021-08-31
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include_footer: true
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aliases: [/end-of-grant-announcement/]
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---
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The DEPToolkit is a proof-of-concept software for researchers and small teams sifting through online material.
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The DEPToolkit is a proof-of-concept software for researchers and small teams sifting through online material.
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With only one click of the mouse, the material will be **archived in a framework demonstrating chain of custody** and **stored durably**. Once included in the growing database, users will be able to **go back to search through** and **annotate the material**, and to **export working copies** of said material for publication and dissemination.
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The Toolkit preserves a copy of the material *as well as* the proof of its authenticity. Future-proof offline copies are created, and their digital signatures immediately added to a remote immutable ledger. All the material is identified by SHA256, a U.S. federal government cryptography standard.
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The Toolkit preserves a copy of the material _as well as_ the proof of its authenticity. Future-proof offline copies are created, and their digital signatures immediately added to a remote immutable ledger. All the material is identified by SHA256, a U.S. federal government cryptography standard.
### Your archive is yours: browse, annotate, export:
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### Your archive is yours: browse, annotate, export:
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The Toolkit facilitates browsing the archive thus created, its annotation and metadata enrichment, as well as the export of working copies. All access and additions are added to the immutable log, accounted for, and replayable at will.
### Lookup-and-prove: reverse verification of the custody
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The Toolkit provides a “lookup-and-prove” mechanism demonstrating proper chain of custody of the material, for the case where a trove of documents has to be cross-checked against the Toolkit's proof mechanisms.
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The Toolkit provides a “lookup-and-prove” mechanism demonstrating proper chain of custody of the material, for the case where a trove of documents has to be cross-checked against the Toolkit's proof mechanisms.
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As I wrote before:
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“***The Toolkit only addresses provenance and chain the custody from the moment of record.** The content stored very well may be unauthentic, doctored, or fake – but with the Toolkit, it will be adequately preserved.”*
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“**\*The Toolkit only addresses provenance and chain the custody from the moment of record.** The content stored very well may be unauthentic, doctored, or fake – but with the Toolkit, it will be adequately preserved.”\*
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There are several implications in terms of metadata:
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- In addition to **future-proof archives of webpages and screenshots**, we're capturing **some metadata** about pages and asking users about their potential needs beyond the
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obvious (think Google Analytics tracking codes, DNS records, etc.)
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- This metadata is preserved and their unique signatures notarised in the **immutable ledger** we are using. This means that **once written in the database, there is no lossy change possible** aside from a complete deletion. Once again: we're addressing chain of custody *from the moment of record* only.
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- The centralised, Amazon Web Services-run ledger provides a hybrid method of [trusted timestamping](https://en.wikipedia.org/wiki/Trusted_timestamping) as per [ANSI ASC X9.95](https://en.wikipedia.org/wiki/ANSI_ASC_X9.95_Standard) and [ISO/IEC 18014](http://en.wikipedia.org/wiki/ISO/IEC_18014): each insertion in and revision of the ledger has a timestamp, er, *stamped* on it by Amazon. It's a feature, not a bug – and a highly desirable one with that.
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obvious (think Google Analytics tracking codes, DNS records, etc.)
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- This metadata is preserved and their unique signatures notarised in the **immutable ledger** we are using. This means that **once written in the database, there is no lossy change possible** aside from a complete deletion. Once again: we're addressing chain of custody _from the moment of record_ only.
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- The centralised, Amazon Web Services-run ledger provides a hybrid method of [trusted timestamping](https://en.wikipedia.org/wiki/Trusted_timestamping) as per [ANSI ASC X9.95](https://en.wikipedia.org/wiki/ANSI_ASC_X9.95_Standard) and [ISO/IEC 18014](http://en.wikipedia.org/wiki/ISO/IEC_18014): each insertion in and revision of the ledger has a timestamp, er, _stamped_ on it by Amazon. It's a feature, not a bug – and a highly desirable one with that.
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**We're now able to verifiably demonstrate appropriate custody of an archived**webpage from a point in time which could not have been faked.
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**We're now able to verifiably demonstrate appropriate custody of an archived** webpage from a point in time which could not have been faked.
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---
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## **Going forward**
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We're working on a number of partnerships that aim to validate some of our assumptions.
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We're working on a number of partnerships that aim to validate some of our assumptions.
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From initial user interviews and contact with practitioners, we'll now be working on two parallel tracks: the collaboration on collective datasets/cases, and the interoperability with other document management systems.
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