Annual Report 2025

1. Director’s Statement

The preservation of digital heritage presents a particular institutional challenge. Digital Objects may remain widely accessible for many years and then disappear without notice. Others survive only in fragments, through archival captures, obsolete software, retained storage media, or documentary evidence of systems that no longer operate.

The work of the Bureau of Digital Antiquities is therefore concerned not only with the preservation of digital material, but with the preservation of context. A Digital Object cannot be adequately understood through surviving files alone. Its network location, technical environment, provenance, relationship to other systems, and history of public use may each form part of the documentary record.

During 2025, the Bureau continued its programme of identifying, documenting and assessing historically significant Digital Objects. Particular attention was given to material associated with the early public World Wide Web, network services whose original operational environments are no longer readily reproducible, and surviving websites that continue to operate at or near their historical network locations.

The year also saw continued development of the Forgotten Web Exchange as the Bureau’s principal catalogue of documented Digital Objects. Work undertaken across the Bureau improved the consistency of catalogue records, strengthened the recording of provenance and preservation status, and identified material requiring further examination or recovery action.

The preservation of digital heritage is necessarily continuing work. No catalogue can be considered complete, and no assessment of a networked Digital Object should be regarded as permanently settled. Objects change, infrastructure disappears, documentary evidence is recovered, and new technical methods permit earlier conclusions to be reconsidered.

The Bureau enters 2026 with an expanded documentary base and a continuing obligation to make that work available for study.

Dr. Theodore V. Elson
Director
Bureau of Digital Antiquities

2. Bureau Mandate

The Bureau of Digital Antiquities is responsible for the identification, documentation and preservation of historically significant Digital Objects.

The Bureau’s activities include:

• identification and assessment of historically significant digital material;
• maintenance of documentary and provenance records;
• examination of surviving network-accessible Digital Objects;
• recovery and reconstruction activity where original access has been lost;
• preservation assessment and continuing observation;
• maintenance of archival collections and associated documentation; and
• publication of records and research for public study.

The Bureau does not regard preservation as synonymous with duplication.

Where historically significant material remains operational and publicly accessible, continued observation and documentation may provide a more appropriate preservation response than immediate reconstruction. Where an original object has been lost or materially altered, archival evidence, technical reconstruction and documentary preservation may instead be required.

Preservation action is determined according to the condition, provenance, accessibility and historical significance of the individual Digital Object.

3. The Year in Review

Bureau activity during 2025 was characterised by continued catalogue development, examination of surviving legacy websites, review of historical network locations, and consolidation of documentary material associated with previously identified Digital Objects.

Several areas of work received particular attention.

The continued survival of websites originating during the early commercial and public expansion of the World Wide Web provided opportunities for direct observation of Digital Objects within their native medium. These objects remain of particular preservation interest because their historical significance is represented not only by their visual content but by their continued existence as network-accessible systems.

At the same time, examination of older catalogue material identified cases in which recorded network locations no longer provided access to the documented object. Such cases required distinction between temporary inaccessibility, domain or infrastructure migration, deliberate removal, replacement by unrelated material, and complete loss of the original network resource.

The Bureau also continued the consolidation of provenance information. Historical addresses, surviving archival captures, contemporary references, technical documentation and other evidence were reviewed where available to establish a more complete documentary history for individual objects.

These activities informed continuing development of Bureau preservation procedures entering 2026.

4. Forgotten Web Exchange

The Forgotten Web Exchange remained the principal catalogue through which the Bureau recorded historically significant Digital Objects during the reporting period.

Catalogue work during 2025 concentrated on the quality and continuity of Digital Object Records rather than the accumulation of records alone.

Review activity included:

• confirmation of historical and current network addresses;
• review of object names, dates and descriptive information;
• recording of operational and preservation status;
• identification of surviving archival or reconstructed access points;
• consolidation of provenance information;
• identification of relationships between Digital Objects; and
• referral of records requiring specialist examination.

Particular attention was given to the distinction between the historical existence of a Digital Object and its present accessibility.

The loss of an original network location does not remove an object from the historical record. Likewise, the continued operation of a domain does not necessarily establish the survival of the Digital Object formerly located there.

The Forgotten Web Exchange therefore records both surviving and unavailable objects. Where appropriate, catalogue records may identify archival, reconstructed or successor access points without representing those resources as the original object.

A programme of further catalogue review was authorised for continuation during 2026.

5. Digital Preservation

Digital preservation activity during the year included observational review of surviving websites, assessment of archived material, documentation of technical dependencies, and examination of objects whose continued accessibility could not be established.

Surviving legacy websites presented a recurring preservation question.

Where an object continues to operate at a historical or successor network location and retains substantial characteristics of its earlier form, intervention may introduce greater alteration than continued observation. Such objects may therefore remain under observation while their accessibility, integrity and historical characteristics are periodically reassessed.

This approach does not imply that an operational website is technically unchanged.

Changes in hosting infrastructure, transport security, browser behaviour, external dependencies and routine maintenance may alter the environment in which a Digital Object operates. Preservation assessment must distinguish between such changes and alterations that materially affect the historical identity of the object.

Work undertaken during 2025 contributed to the formalisation of procedures for the continued verification of active legacy websites. Further technical guidance arising from this work was scheduled for publication during 2026.

6. Recovery Operations

Recovery activity was undertaken where catalogue review identified Digital Objects for which original public access had been lost, substantially degraded, or could no longer be reliably established.

Recovery work may draw upon multiple forms of evidence, including surviving files, archival captures, historical network records, contemporary documentation, software dependencies, retained storage media and third-party references.

No single source is assumed to provide a complete representation of a lost Digital Object.

During the reporting period, several candidate objects were referred for further examination following the discovery of incomplete or inconsistent surviving material. In other cases, sufficient documentary evidence was available to clarify the historical identity of an object without attempting technical reconstruction.

One continuing investigation concerned a previously documented web resource whose original network location remained active but no longer presented the historical material associated with the Bureau record. Surviving captures and contemporary references were retained for comparative examination.

The investigation remained open at the close of the reporting period.

Findings arising from recovery examinations may be published separately where they are considered of wider preservation or research value.

7. Records and Provenance

The reliability of the Bureau catalogue depends upon the distinction between documented evidence, reasonable inference and unresolved information.

Records and provenance work during 2025 therefore concentrated on improving the evidential basis of Digital Object Records.

Sources reviewed during catalogue work included:

• surviving network resources;
• archived web captures;
• contemporary publications and references;
• technical documentation;
• historical domain and address information;
• retained digital files and metadata; and
• earlier Bureau documentation.

Conflicting evidence was not automatically resolved by selecting the most recent source. Where the available record remained uncertain, that uncertainty was retained in the relevant documentation.

This principle is particularly important in the study of early networked material. Publication dates, authorship, original addresses and technical characteristics may be incompletely documented, and surviving copies may reflect different stages in an object’s operational history.

Further work to standardise provenance notation and documentary references was approved for 2026.

8. Bureau Archives

The Bureau Archives continued to maintain documentary and technical material supporting preservation, research and catalogue activity.

Archival holdings include material retained as evidence of historically significant Digital Objects as well as administrative and research records generated through Bureau activity.

During 2025, archival work included the organisation of material associated with existing catalogue records and the identification of holdings requiring additional provenance review.

Where archival copies of publicly accessible material are retained, the existence of those copies does not automatically change the preservation status of the corresponding Digital Object.

An archival capture, screenshot, recovered file set or technical reconstruction may provide significant evidence while remaining distinct from the original networked object.

The Bureau will continue to maintain that distinction in both archival and catalogue records.

9. Research and Publications

Research undertaken during 2025 supported the development of preservation guidance, catalogue procedures and field examination methods.

A principal area of study concerned the treatment of Digital Objects that remain publicly accessible despite their historical age.

This work considered questions including:

• when continued operation constitutes meaningful historical continuity;
• how changes in network location should be documented;
• how temporary inaccessibility should affect operational status;
• the evidential value of contemporary archival captures;
• the distinction between an original object and a reconstruction; and
• the circumstances in which direct preservation intervention is warranted.

The results of this work informed several documents scheduled for public release during 2026.

The Bureau also continued preparation of material intended to make its research and preservation methodology more readily available outside the organisation.

10. Institutional Development

During 2025, the Bureau continued to standardise procedures used across its offices and divisions.

Particular emphasis was placed on consistent terminology and the relationship between catalogue, archival, preservation and recovery records.

The terms Operational Status, Preservation Status, Historical Address, Current Address, and Digital Object Record were subject to continued internal review to reduce ambiguity between technical condition and documentary classification.

Work also continued on improving the relationship between the Forgotten Web Exchange and supporting Bureau documentation.

These measures are intended to ensure that catalogue records can be revised as new evidence emerges without obscuring the documentary history of earlier assessments.

11. Priorities for 2026

The Bureau has established the following priorities for the 2026 operating year:

1. continue review and expansion of the Forgotten Web Exchange;
2. formalise procedures for periodic verification of active legacy websites;
3. undertake field examination of selected Digital Objects;
4. develop additional guidance concerning preservation status and network continuity;
5. continue recovery examination of unavailable and materially altered Digital Objects;
6. improve the recording of provenance and relationships between Bureau records;
7. expand the organisation and description of archival holdings; and
8. establish improved public access to Bureau catalogue records, publications and institutional information.

The final priority represents a significant development in the Bureau’s public programme.

Historically, access to Bureau material has been distributed across individual records, publications and archival resources. Work planned for 2026 will seek to provide a more consistent public point of access to the Bureau’s principal documentary services.

Initial public access will necessarily represent only a portion of the Bureau’s holdings. Material will be released progressively as catalogue, provenance and documentary review permits.

12. Administrative Statement

This report records the principal activities and institutional priorities of the Bureau of Digital Antiquities for the year ending 31 December 2025.

References to continuing investigations, candidate Digital Objects and unpublished Bureau material are included for administrative context and should not be interpreted as final preservation determinations.

Catalogue classifications and preservation assessments remain subject to revision where additional evidence becomes available.

The Bureau will continue its programme of identification, documentation, preservation and public study during 2026.

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Issued by the Office of the Director
Bureau of Digital Antiquities
31 March 2026