this post was submitted on 17 Jul 2025
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Crazy Ideas

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Just crazy ideas!

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I wanna get matching microchips with my cat. (sh.itjust.works)
submitted 1 month ago by TriflingToad@sh.itjust.works to c/crazyideas@lemmy.world
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imagine getting matching ones for each pet you have and by the time im like 80 (if I live past my 20s that is) I light up a vet scanner like a Christmas tree.

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[–] ExtremeDullard@lemmy.sdf.org 7 points 1 month ago

It's very easy:

  • Get yourself a DangerousThings xEM implant: it's a glass implant with a T5577 chip inside, which is reprogrammable to be compatible with most 125kHz RFID chips out there (in fact, it's probably what's in your cat)
  • Get a Proxmark3 RDV4
  • Scan your cat's FDX-B chip's ID
  • Get the chip implanted by a body modification shop (DangerousThings has a list of approved partners who can perform the implantation). It's a 10-second affair with a big needle. No biggie.
  • After a few days to 2 weeks, when the swelling has subsided and your chip registers with a solid signal on the Proxmark3, reprogram your chip as a FDX-B chip with your cat's ID.