Galaxy Research Firmware Block Boundary
glxyresearch-firmware-block-boundary
- Author
- @glxyresearch
- Organisation
- independent
- Evidence role
- on-chain-analysis
- Posted
- 1 Aug 2026, 18:38 UTC
- Capture status
- capture held
- Artefacts held
- 2
Galaxy Research states that the vulnerable COLDCARD firmware shipped on 17 March 2021 around block 674,951, and that no coin identified in waves 1 to 3 was created before that block. This bears independently on the affected-range lower bound: 17 March 2021 is the v4.0.0 release date recorded here, not the 29 March 2021 v4.0.1 date that the vendor advisory uses as its stated boundary.
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