ESMA official statement
ESMA statement to support the smooth implementation of MiCA standards and format
AI summary
Statements express supervisory expectations rather than binding rules.
They are relevant for planning implementation work.
Who this applies to: MiCA licence holders and applicants, and compliance and reporting teams
Implementation status: ESMA official statement
- Build transitional arrangements into implementation timelines.
- The statement does not change statutory duties.
- Track later updates and national supervisors' local positions.
Contents
28 November 2025 ESMA75-1303207761-6284
Statement to support the smooth implementation of MiCA data standards and format requirements MiCA technical format for the white paper and for the order book records to be kept by crypto-asset service providers operating a trading platform for crypto-assets and the data standards requirements applicable to all crypto-assets service providers and preparers of white papers Obligation
Order-book records
Transparency
Records of transactions
orders
Entities concerned
To be maintained by:
To be published by:
To be maintained by:
& White papers
To be published by:
Crypto asset service Crypto asset service Crypto asset service Issuers providers operating providers operating providers operating trading Offerors trading platforms trading platforms platforms Crypto asset service Persons seeking admission to providers providing any other trading service that would trigger the placement of orders or Crypto asset service providers operating trading platforms execution of transactions
ESMA - 201-203 rue de Bercy - CS 80910 - 75589 Paris Cedex 12 - France - www.esma.europa.eu
Entry force
into 3 April 2025
3 April 2025
30 June 2025
23 December 2024
Application date
RTS apply as of entry RTS apply as of entry into RTS apply as of entry into 23 December 2025 into force force force
Technical specifications
JSON schema available NA (Legal Entity Identifier1 Standardised ISO 20022 XBRL taxonomy available as of 5 at this link as of 28 and Digital Token messages to facilitate august 2025 November 2025. Identifier2 requirements compliance with Articles 6(2are already applicable)3 3) and 7(2) of the RTS. 6 months lead time granted from the time of publication.
A show case to generate an iXBRL white paper available at this link as The messages are available of 8 October 2025. at this link as of 28 November 2025.
ISO 17442 LEI code, for further details see background information section at the end of this statement.ISO 24165 DTI code, for further details see background information section at the end of this statement.3 Where the data relates to a crypto-asset for which no white paper is notified and published, CASP trading platforms should retrieve the DTI from the DTIF registry.
Where no DTI is already available in the registry, CASP trading platforms should request the creation of a DTI code via the DTIF.2
28 November 2025 ESMA75-1303207761-6284
Scope and purpose ESMA is issuing this public statement in relation to the technical specifications concerning the implementation of the following MiCA data standards and formats requirements: •
The format of order book records for crypto-asset service providers (CASPs) operating a trading platform for crypto-assets as defined by the Commission Delegated Regulation (EU) 2025/416, supplementing regulation (EU) 2023/ 1114 on Market in Crypto-Assets (MiCA), hereafter referred to as “the order-book RTS”.
The data standards requirements for all CASPs as defined by the Commission Delegated Regulation (EU) 2025/1140 specifying records to be kept of all cryptoasset services, activities, orders and transactions undertaken, hereafter referred as “the record-keeping RTS”
The manner in which CASPs operating a trading platform for crypto-assets are to present transparency data as defined by the Commission Delegated Regulation (EU) 2025/417 of 28 November 2024, hereafter referred to as “the transparency RTS”.
The format and data standards requirements for the MiCA white papers as defined by the Commission Implementing Regulation (EU) 2024/2984 of 29 November 2024 with regard to forms, formats and templates for the crypto-asset white papers, hereafter referred to as “the white papers ITS”.
The data necessary for the classification of crypto-asset white papers as defined by the Commission Delegated Regulation (EU) 2025/421 of 16 December 2024 specifying the data necessary for the classification of crypto-asset white papers and the practical arrangements to ensure that such data is machine-readable, hereafter referred to as “the white papers classification RTS”.
The above-mentioned requirements are essential to ensure transparency, facilitate market surveillance and allow for the comparability of information across crypto-asset market participants.This public statement aims at providing further practical guidance to market participants.
Legal background According to Article 1(2) of the order-book RTS, CASPs should keep records of relevant data relating to all orders (order book records) in JSON format, in accordance with the ISO 20022 methodology.According to recital (2) of the record-keeping RTS, competent authorities should be able to perform the same analysis on all record datasets, regardless of which crypto-asset service provider produced the record.
In line with this principle, Articles 6(2)-(3) and 7(2) of the record-keeping RTS define how the information to be record kept by CASPs should be provided to the national competent authorities.
ESMA - 201-203 rue de Bercy - CS 80910 - 75589 Paris Cedex 12 - France - www.esma.europa.eu
According to recital (3) of the record keeping RTS, consistent and comparable records on services, activities, orders and transactions are essential in order for competent authorities to fulfil their supervisory tasks.
It follows, therefore, that the data records required in accordance with the record-keeping RTS should respect the same standards as defined in the order book RTS to ensure consistency between both In accordance with Article 2 of the white papers ITS, persons drawing up a crypto-asset white paper should prepare them in XHTML format marking the fields set out in the Annex to the ITS using Inline XBRL 1.1 specifications of the eXtensible Business Reporting Language (XBRL).
The above-mentioned technical schemas have been prepared in line with the templates defined in the Annexes to the respective technical standards and, amongst others, include the below data standards requirements: •
According to Article 14 of the record-keeping RTS, in the absence of any alternative identifier defined at Union level, all CASPs should identify clients that are legal entities with a legal entity identifier codes that comply with the ISO 17442 standard and are included in the Global LEI database maintained by the Central Operating Unit appointed by the Legal Entity Identifier Regulatory Oversight Committee.
According to Article 15 of the record-keeping RTS and Article 3 of the white paper classification RTS, in the absence of any alternative identifier defined at Union level, all CASPs and any other preparer of crypto-asset white papers should identify the crypto-asset by using a digital token identifier that is compliant with the ISO 24165 standard at the level of granularity specified in the relevant technical standards.
Technical specifications The RTS concerning order book records entered into force on the 3rd of April 2025.The JSON schema have been developed by ESMA based on ISO 20022 methodology.Considering the need to ensure an orderly transition to the new standards and format of order book records, NCAs expect to start requesting data in the new JSON file format within 6 months after its official publication on ESMA website at this link.
Moreover, to facilitate compliance with Article 6(2)-(3) and 7(2) of the record keeping RTS and to ensure consistency with the order-book RTS, ESMA is making available the related standardised messages based on ISO 20022 methodology at this link.The ITS concerning the form, format and templates to be used for the Crypto-Asset white papers will apply as of 23rd December 2025.
The XBRL taxonomy to be used to comply with these requirements have already been published on ESMA website on 5th August 2025.To show case generation of an iXBRL white paper, ESMA is also making available an Excelbased example.The example is available on ESMA website at this link.Its use is voluntary and ESMA will not accept any liability concerning its use or its outputs, which need validation and remain under the full responsibility of the issuer/CASP.
Additional background information On the LEI: •
How to search for an existing LEI – LEI Search
How to obtain an LEI – Get an LEI: Find LEI Issuing Organizations Organizational Identity – GLEIF
Briefing with additional information on LEI – https://www.esma.europa.eu/sites/default/files/library/esma70-145238_lei_briefing_note.pdf
On the DTI: •
How to search for an existing DTI – https://dtif.org/registry-search/
How to obtain a DTI (or FGG DTI) – https://dtif.org/wpcontent/uploads/2023/12/DTI_Quick-Guide.pdf
General information on the DTI – FAQs < DTIF
On XBRL: •
XBRL International iXBRL | XBRL
Official English source text captured for the public library.