# Article 8 — Priority and sequence numbers **Commission Delegated Regulation (EU) 2025/416 · binding · OJ L, 2025/416, 14.3.2025 · dated 29 Nov 2024 [in force]** *In force · Commission Delegated Regulation (EU) 2025/416, OJ L, 2025/416, 14.3.2025 · Checked against EUR-Lex on 26 Oct 2026 · [Official source](https://eur-lex.europa.eu/eli/reg_del/2025/416/oj/eng)* 1. Crypto-asset service providers operating a trading platform for crypto-assets which operate trading systems on a price visibility-time priority shall maintain a record of the priority time stamp for all orders as specified in field 12 of Table 2 of the Annex. 2. Crypto-asset service providers operating a trading platform for crypto-assets which operate trading systems on a size-time priority basis shall maintain a record of the quantities which determine the priority of orders as specified in field 13 of Table 2 of the Annex and the priority time stamp referred to in paragraph 1. 3. Crypto-asset service providers operating a trading platform for crypto-assets which use a combination of price-visibility-time priority and size-time priority and display orders on their order book in time priority shall maintain a record of the priority time stamp for all orders as specified in field 12 of Table 2 of the Annex. 4. Crypto-asset service providers operating a trading platform for crypto-assets which use a combination of price-visibility-time priority and size-time priority and display orders on their order book in size-time priority shall maintain a record of the quantities which determine the priority of orders as specified in field 13 of Table 2 of the Annex and the priority time stamp referred to in paragraph 1. 5. Crypto-asset service providers operating a trading platform for crypto-assets shall assign and maintain a sequence number for each event as specified in field 14 of Table 2 of the Annex.