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verification methods, such as automated marking, ruggedised active transaction protocol and a generational long-term memory.
barcodes, RFID tagging, or genetic and laboratory analysis, to A digital twin created at the seedling or planting stage
physically secure the link between the physical timber asset must remain securely readable by downstream processing
and its digital twin. systems many decades into the future, requiring architecture
Notably, these physical anchors are currently the least designs that prioritise long-term interoperability over short-
used technologies in surveyed practice: geodata-based term functional diversity.

logical ordering and colour marks dominate, whereas RFID, Moreover, long-term biological production is regularly
photo-optical measurement, fingerprinting, and DNA analysis disrupted by short-term ecological crises, such as windthrows
remain marginal. or bark beetle infestations, which demand immediate processing
This exposes a critical gap: the low-cost identifiers of vast data volumes under adverse conditions.
that stakeholders use establish logical order but do not To maintain operational continuity during such calamities
cryptographically bind a physical asset to its digital record, while ensuring digital sustainability, the deployment of a hybrid
whereas the anchoring technologies capable of resolving the architecture approach is essential.
oracle problem are precisely those with the lowest current Operational data from GIS or IoT systems should be kept
adoption. off-chain, utilising the blockchain ledger selectively to notarise

Furthermore, to avoid creating isolated digital silos, critical custody transfer points.
blockchain systems must establish seamless interoperability This layout enables asynchronous, offline-first data logging
with existing third-party certification schemes and official that can synchronise with the ledger once field crises subside.
regulatory registers. This approach also prevents energy-intensive consensus
This requires the development of standardised application mechanisms (e.g., Proof-of-Work) in favour of energy-efficient
programming interfaces that communicate directly with the alternatives like Proof-of-Stake or private, permissioned
official EUDR information system, eliminating administrative architectures, ensuring the IT infrastructure does not counteract

duplication and ensuring cross-party verification without the ecological objectives of forest conservation.
increasing technical fragmentation. This architecture favours a permissioned consortium
topology rather than a public, open-membership network.
Socio-Economic Governance, Long-Term Lifecycles Validating full nodes would be operated by a limited set
Addressing the socio-economic and governance prerequisites of institutional stakeholders such as certification bodies (FSC
for widespread adoption requires reconciling a fundamental and PEFC), forest administrations, industry associations, and
temporal discrepancy: the conflict between biological rotation larger sawmills, while forest owners and harvester crews
periods and digital lifecycles. In contrast to agriculture, where interact through light clients and mobile applications that
production cycles are measured in months, forestry operates submit cryptographically signed transactions without hosting

across generations. the ledger.
While software standards, cryptographic algorithms, and Only a minimal, tamper-evident layer should reside on-
hardware interfaces typically face obsolescence within a chain: hashes of custody-transfer events, notarised proofs,
decade, forest data must remain accessible, immutable, and token state, and smart-contract logic, whereas high-volume
semantically readable for over half a century. operational data such as GIS geometries, IoT sensor streams,
To cope with this timeline, a forest-anchored blockchain and raw harvester files remain off-chain, bound to the ledger
must fulfil dual functionality, operating simultaneously as an by cryptographic reference.