## Bolt Card technology

| Document | Description |
| --- | --- |
| [System](docs/SYSTEM.md) | Bolt card system overview |
| [Specification](docs/SPEC.md) | Bolt card specifications |
| [Privacy](docs/CARD_PRIVACY.md) | Bolt card privacy |
| [NXP 424 Datasheet](docs/NT4H2421Gx.pdf) | NXP NTAG424DNA datasheet |
| [NXP 424 Application Note](docs/NT4H2421Gx.pdf) | NXP NTAG424DNA features and hints |