Think of each dog as an identity card and the collection as a shared book of drawing instructions. Bitcoin keeps both. When you visit, your browser reads the card, follows the instructions and builds the dog on the spot. There is no hidden folder of finished pictures to lose.
The window around the art can get better over time—much like replacing a picture frame without touching the painting. All three recipes now live on Bitcoin. Two of them—the pixel portrait and the raised portrait—are hash-sealed: your dog checks them against a fingerprint published before the first sale, and they can never be repainted. The turnable character is on chain too, but deliberately upgradeable: a better window can be added later, and it can only get better, because it reads the same sealed identity. Same seed, same traits, same dog.
Before the first dog left, we placed a digital fingerprint of the finished recipe on Bitcoin. A fingerprint is a short code that changes if even one detail changes. The recipe is now published on Bitcoin too—and it still matches the fingerprint promised at the start. Nothing was swapped between the promise and the proof, and you can confirm that yourself rather than taking our word for it.
That fingerprint is the promise, and the published recipe is the proof. We could not quietly change the recipe after seeing where the dogs went, and you never have to rely on our word alone—because both halves are on Bitcoin, anyone can check the match for themselves.
The pack shares one set of recipes, so every dog does not need to carry the same instructions again. It only carries its own tiny identity card and the path back to the shared book. That is how a turnable 3D character can begin with roughly 300 bytes—less text than a short email—and still come alive if this website disappears.