Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
ISO/TR 25145 — Blockchain and DLT: Overview of DLT-Based Collections and Collections Management
Comprehensive Technical Guide to Smart Contract Implementation for Digital Collections (NFTs)
1. Introduction to DLT-Based Collections
ISO/TR 25145:2026, prepared by ISO/TC 307 (Blockchain and distributed ledger technologies), provides a comprehensive overview of DLT-based collections — commonly known as digital collections or NFTs (non-fungible tokens) — and their management. The document addresses the entire lifecycle from creation through trading to secure custody, with particular emphasis on smart contract implementation, risk management, and cybersecurity.
Traditional collection trading relies on intermediaries such as auction houses and brokerages, which inherently limits market reach and imposes costs. DLT-based collections offer an alternative paradigm: tamper-evident ownership records, provable scarcity, automated royalty payments through smart contracts, and direct creator-to-collector transactions. ISO/TR 25145 systematically examines these benefits while also addressing the substantial risks and implementation challenges.
DLT-based collections are not merely digital assets — they represent a paradigm shift in how provenance, ownership, and authenticity are established and verified across creative industries, sports memorabilia, art markets, and antique collecting.
2. Smart Contract Architecture and Lifecycle Operations
The core technical contribution of ISO/TR 25145 lies in its detailed specification of smart contract operations for DLT-based collection management. The document defines six fundamental operations and provides C++ pseudocode for each.
| Operation | Function | Key Validation Checks |
|---|---|---|
| Create | Define a new collection type with metadata | Caller permission; duplicate SKU prevention |
| Issue (Mint) | Generate a new collection item under a holder’s account | Issuer authority; collection existence check |
| Transfer | Move ownership from one account to another | Asset existence; sender is current holder |
| Update | Modify collection metadata (issuer only) | Caller is issuer; collection exists |
| Verify (has_asset) | Check if an account holds a specific collection | Account and asset identifiers validity |
| Retrieve (get_asset) | Query collection details for an account | Account and asset identifiers validity |
2.1 Roles and Permission Model
The document defines four key roles with distinct permission sets: Issuers (museums, IP holders) request and create collections; DLT Platform Administrators approve issuance and manage permissions; Third-party Audit Institutions review copyright and compliance; and Collectors purchase and trade collections. Smart contracts automate permission enforcement, ensuring every transaction reflects the principal’s authenticated intent.
Smart contracts can behave erroneously due to code bugs or unforeseen interactions. ISO/TR 25145 emphasizes the need for third-party security audits, formal verification methods, and upgradeability features with embedded governance controls to mitigate these risks.
3. Engineering Design Insights: Risk Management and Security
ISO/TR 25145 dedicates significant attention to risk analysis and cybersecurity, reflecting the real-world challenges that have plagued digital collection platforms.
3.1 Content and Copyright Risk Control
Smart contracts can be programmed with automated content filtering and copyright verification prior to issuance. Dynamic risk assessments can trigger asset freezing or alerts when new risks emerge. The document also specifies dispute resolution mechanisms including arbitration clauses, technical execution of ownership transfers, and compensation calculation based on market value and rarity.
3.2 Cybersecurity Architecture
The recommended security framework encompasses data encryption (TLS for transit, strong algorithms for at-rest data), smart contract security audits, role-based access control with multi-factor authentication, network-level DDoS protection, and continuous security monitoring with incident response planning. A bug bounty program is recommended as an additional layer of defence.
3.3 Interoperability Considerations
Cross-platform operability is addressed through universal data formats, cross-ledger protocols (e.g., Polkadot relay chain, Cosmos IBC), smart contract compatibility standards, and multi-DLT wallet systems. This ensures that DLT-based collections are not siloed within a single ecosystem.
For engineers building DLT-based collection platforms, the template code structures and role-based permission model in ISO/TR 25145 provide a solid architectural foundation that can be adapted to specific blockchain platforms such as Ethereum (ERC-721/ERC-1155), Solana, or Hyperledger Fabric.
4. Frequently Asked Questions
Q1: Does purchasing a DLT-based collection grant copyright ownership?
No. ISO/TR 25145 explicitly warns that many buyers mistakenly believe purchasing a collection grants them copyright. The purchase typically transfers possession only — copyright remains with the issuer unless explicitly assigned in the agreement.
No. ISO/TR 25145 explicitly warns that many buyers mistakenly believe purchasing a collection grants them copyright. The purchase typically transfers possession only — copyright remains with the issuer unless explicitly assigned in the agreement.
Q2: What is the relationship between DLT-based collections and NFTs?
DLT-based collections as defined in ISO/TR 25145 are functionally equivalent to NFTs (non-fungible tokens). The document uses the more general term “DLT-based collection” to remain technology-neutral.
DLT-based collections as defined in ISO/TR 25145 are functionally equivalent to NFTs (non-fungible tokens). The document uses the more general term “DLT-based collection” to remain technology-neutral.
Q3: Can DLT-based collections represent physical items?
Yes. The document discusses both digital and physical collections. For physical items (e.g., antiques), the DLT records provenance, custody chain, and authentication certificates, with the physical item remaining off-chain.
Yes. The document discusses both digital and physical collections. For physical items (e.g., antiques), the DLT records provenance, custody chain, and authentication certificates, with the physical item remaining off-chain.
Q4: How does ISO/TR 25145 address environmental concerns?
While not the primary focus, the document’s technology-neutral approach allows implementers to choose energy-efficient consensus mechanisms (e.g., proof-of-stake) rather than energy-intensive proof-of-work systems.
While not the primary focus, the document’s technology-neutral approach allows implementers to choose energy-efficient consensus mechanisms (e.g., proof-of-stake) rather than energy-intensive proof-of-work systems.
📥 Standard Documents Download
No download files available yet