EU Battery Regulation · 2023/1542
Your battery passport is ready. But who proves it is true?
From 18 February 2027, LMT batteries, industrial batteries above 2 kWh, and electric-vehicle batteries entering the EU market or being put into service must carry a digital battery passport. Numbers Protocol adds verifiable provenance to passport data.
The question is not only whether the data exists, but whether it can be trusted
A digital battery passport connects identity, sustainability, performance, repair, and recycling information, with different access levels for different roles.
Putting data in a passport does not prove the data is true
A DPP explains how information travels with a product. Numbers proves where that information came from, when it was sealed, and whether its history is complete.
Capture → Seal → Trace
Capture — At the source
Preserve time, origin, device, and other context where data is created, giving every record an identifiable integrity fingerprint.
Seal — Cryptographic seal
Seal the state of data with timestamps and cryptographic proofs so third parties can check whether a record changed after sealing.
Trace — Full traceability
Keep manufacturing, use, repair, transfer, and recycling events as additive layers without overwriting earlier history.
Not another DPP tool. The provenance layer for DPP.
Numbers Protocol turns the origin, changes, and usage context of data into verifiable records. Existing systems manage the passport; Numbers makes its most important information more trustworthy.
Discuss a battery DPP pilot with Numbers Protocol
Legal source: Regulation (EU) 2023/1542, Article 77 and Annex XIII. This page describes a technical approach and does not constitute legal or compliance advice.
EU Battery Regulation · 2023/1542
電池護照做完了，誰來證明它是真的？
自 2027 年 2 月 18 日起，LMT 電池、容量大於 2 kWh 的工業電池與電動車電池進入歐盟市場或投入使用時，必須具備數位電池護照。Numbers Protocol 為護照資料補上可驗證的出處證明。
問題不只是有沒有資料，而是資料能不能被信任
數位電池護照會連結電池識別與技術特性、永續與循環資訊、效能與耐用性，以及維修、再利用與回收所需資訊。不同角色依權限取得不同層級的內容。
把資料放進護照，不等於證明資料是真的
DPP 解決資訊如何被帶在產品身上；Numbers 解決資訊從哪裡來、何時被封存、歷程是否完整。
Capture → Seal → Trace
Capture — 源頭擷取
在資料產生的節點保留時間、來源與裝置等脈絡，為每筆紀錄建立可識別的完整性指紋。
Seal — 密碼封印
以時間戳與密碼學證明封存資料狀態，讓第三方能檢查紀錄自封存後是否曾被修改。
Trace — 全程追溯
將製造、使用、維修、轉手與回收事件保留為新增層，不覆蓋既有歷程。
不是又一個 DPP 工具，是 DPP 的出處證明層
Numbers Protocol 專注於 provenance，讓資料的來源、變更與使用脈絡成為可驗證紀錄。既有系統負責管理護照，Numbers 負責讓護照中的重要資訊更值得信任。
與 Numbers Protocol 討論電池 DPP 試點
法規依據：Regulation (EU) 2023/1542, Article 77 and Annex XIII。本頁為技術方案說明，不構成法律或合規意見。