Spherity comes from digital identity: verifiable credentials, decentralised identifiers, the EU wallet, several regulations on one platform. Batteriepasswerk takes the other route and ships a finished battery passport application with immutability already built in, as a SHA-256 hash chain any auditor can recompute without an account and without joining a network.
Spherity, based in Dortmund, has been building decentralised identity since 2017. Its product family covers VERA for digital product passports, EIDA for enterprise identity under eIDAS 2.0 and CARO for the pharmaceutical supply chain. In 2024 the company presented a battery passport solution with RCS Global as the first Catena-X certified solution of its kind. VERA is white-label ready and spans batteries, textiles, tyres, metals and furniture. The website does not publish prices.
Batteriepasswerk is not a toolkit but the finished application for exactly one obligation. You get the mandatory-field logic of the EU data-point list, mass serialisation, a GS1 Digital Link QR code per unit, the three access levels of the regulation and tamper protection as part of the product, with no credential architecture, no wallet roll-out and no ecosystem membership as a precondition.
verifiable credentials are a strategic given, you want several product categories and regulations on one platform, you work inside the Catena-X data space, or you want to run identity and proof as your own infrastructure across several regulations.
you place batteries on the market, need the passport by the deadline and have to evidence audit-proof records, but do not want to run an identity project to get there. The first passport happens today, not after the architecture workshop.
Spherity works on one of the most demanding parts of the digital product passport. Three points we explicitly acknowledge.
The platform builds on W3C standards for decentralised identifiers and verifiable credentials. That proves not only that data is unchanged but also who issued it and whether they were entitled to. For multi-tier chains of attestation it is the more powerful construction.
The battery passport solution presented with RCS Global was communicated as the first Catena-X certified solution of its kind, and VERA points to integration with the EU Business Wallet under eIDAS 2.0. If you are heading into those ecosystems anyway, this is a vendor that is native to them.
Beyond the Battery Regulation, VERA addresses the Ecodesign Regulation and further legal acts across industries. If you carry textiles or tyres alongside batteries you do not have to run those obligations in separate systems.
Audit-proof records are the goal; verifiable credentials are one way there. Batteriepasswerk gets there with fewer moving parts, and without your auditors installing a wallet.
Every version of a model and passport is hashed with SHA-256, and each hash includes its predecessor. Change something after the fact and the chain breaks visibly. No key management on your side, no wallet on your auditor's side.
Every public passport page carries its integrity proof, and an open endpoint validates the full chain on demand. Market surveillance, buyers and recyclers check it in the browser, without registering and without joining a data space.
Who changed what and when is recorded at database level, append-only, impossible to delete or overwrite. That holds for changes through the API and for values suppliers entered themselves.
Each value knows where it came from: entered manually, delivered by a supplier, extracted from evidence and released, or received through the API. That provenance is part of the passport, not a note beside it.
Recyclers and authorities apply for professional access, the operator decides per request, and every retrieval is logged. Recyclers see the disassembly instructions, authorities the full scope. That mirrors the access logic of the regulation instead of approximating it.
The REST API v1 to OpenAPI 3.1 connects ERP and MES today, and export to Catena-X and AAS is in preparation. You are not closing the door to the data space, you simply walk through it once a customer actually asks.
Powerful for multi-tier attestation chains and cross-industry ecosystems.
Configured on day one, verifiable from any browser.
Verifiable credentials do more: they also prove who issued a statement and whether they were entitled to. If you need that, the left route is right. For the evidentiary duty of the Battery Regulation the right one is enough, and it is finished by the deadline.
All Spherity entries come from spherity.com, retrieved 9 September 2026. "Not stated" means the public website does not disclose it, not that the capability is missing.
| Criterion | Batteriepasswerk | Spherity |
|---|---|---|
| Primary purpose | Finished application for the battery passport under EU 2023/1542 | Platform for digital identity and product passports across industries |
| Product categories | Batteries across all four categories of the regulation, with all 71 EU data points in the mandatory-field model | Batteries, textiles, tyres, metals, furniture |
| Proof model | SHA-256 hash chain across versions, open verification endpoint | Verifiable credentials and decentralised identifiers to W3C |
| Third-party verification | In the browser, without an account or wallet | Through credential verification, wallet integration provided for |
| Catena-X | Connectable, AAS export in preparation | Certified battery passport solution communicatedCompetitor strength |
| Prices published | Yes: €0 / €149 / €449 per month, Enterprise from €1,290 | No, no pricing on the website |
| Getting started | Self-service, sign up online in minutes | Contact through sales |
| Under your own brand | Yes: deliver passports under your brand through REST API v1 in your own portal, partner licence on request | Yes, VERA is described as white-label ready |
| Mass serialisation | CSV and Excel import, one passport per serial number | Not stated |
| Supplier data without an account | Yes, token link with reminders after 7 and 14 days | Not stated |
| Live BMS telemetry | Yes, ingest API for state of charge and state of health from Pro | Not stated |
| Hosting | Germany, data processing agreement issued automatically at signup | Not stated |
| Headquarters | Hamburg, Germany | Dortmund, Germany |
All statements without warranty, as of 9 September 2026. Batteriepasswerk is itself a vendor in this comparison. Corrections to info@batteriepasswerk.com are verified and added with a date.
No architecture workshop, no key ceremony. You start at the model and end with a passport whose integrity anyone can recompute.
Category and cut-off date decide which of the 71 EU data points apply. The completeness score shows the state and jumps straight to the missing field.
Suppliers deliver through a link, evidence is read and released individually. From release onwards every value hangs in the chain and is thereby evidenced.
A QR code per unit, a public passport page with its integrity proof, professional access for recyclers and authorities on request and logged.
The regulation requires a passport that is protected against tampering and whose changes are traceable. It prescribes neither a particular cryptography nor a particular data space. Anyone who still needs verifiable credentials usually has a customer or an ecosystem as the reason, not the regulation.
What the regulation does require: the correct data points per category and cut-off date, retrievability through a QR code on the product, and tiered access rights. That is where it is decided whether a passport stands up on the deadline.
All Spherity statements come from publicly accessible sources retrieved on 9 September 2026. They reflect that day and may change.
Disclosure: Batteriepasswerk is itself a battery passport software vendor and therefore an interested party in this comparison. That is why we compare only verifiable, published criteria and name the competitor's strengths explicitly.
Create a model on the Pilot plan, change one value and watch a new version appear and lock into the chain. It costs nothing and takes fifteen minutes.
