m_11

i envision a world without duplicates

@alex008888 Physical Uncloneable Function It’s a unique identifier derived directly from the physical properties of an object In chip manufacturing it is used to identify/authenticate chips based off natural variations in silicon It would be interesting to apply this to jewelry

@instance_11 What is PUF?

I created what may be the first self-authenticating jewelry design. This pendant was made parametrically, and the parameters are not reversible from its form. Only the owner will be given them. An Ed25519 public key can be used to verify parameter possession without disclosure.

Ah I should have been more specific, it’s 11 separate parameters each with 3 decimal places, that’s where the 140 bits of entropy is coming from Interesting direction with the visual codes. A sort of PUF that leverages the material itself (silver) is a long term goal, I’ll likely stick with server side verification until I can achieve that

@instance_11 If you round to 3 decimal places it's only 1000 veriants of a pendant, someone can abuse collisions. As for advices, here's an example of a pattern based on public key from ed25519(sha256("instance_11")), engrave something like that on the pendant and you won't need a server

@handotdev your infatuation with failure blinds you to the responsibility you would possess if you succeed

@ast_lazy yes x.com/instance_11/st…

@instance_11 不同的参数会有显著的样式差异吗？

@StakensJ I’m here for life

@instance_11 I love your work so much dude please never stop posting

Excellent points. To start with the entropy, the parameter space is continuous, rounded to 3 decimal places, so the variety is closer to 140 bits. Not quite utilizing the full 256 bit capacity of Ed25519, but enough that this shouldn't be brute forceable As for this system requiring trust in my website, I believe that is the optimal design. Complete trustless verification will always break at the physical level, as anyone in an ownership chain will have access to the private key and past owners would be able to impersonate the current owner. The goal here is not perfect security, but a step above a serial number as the foundation for a second hand market. Lastly, the public key is derived from the pendant, but not quite as you describe. It is an Ed25519 public key whose private seed is the SHA-256 hash of the parameters. I cannot think of a mechanism where the public key would be directly extractable from the image without revealing information about the parameters and still be useful as a verifier of nonces signed with the private key. If you have more details in mind for such a setup I would love to hear them, sidestepping the public key registrar would be very cool.

@instance_11 It would be better if Bob could get a public key from the pendant itself. You can make some complex pattern which would store the full public key and could be reversed from the picture itself

@contrarymotion Thank you, I'm currently working out the finer details on how to implement a web interface that supports this in a way that is both secure and intuitive, hoping to start a conversation around this post to help reveal unknowns

@instance_11 This is completely awesome and deserves much more reach!

@happyclambell thank you! happy it is resonating but still have much to learn

@instance_11 you seem to have a gift for sound design :-)

presenting uniqueness at scale True Snowflakes are 1-of-1 pendants, each a point in the parameter space of a formula modeling the radial symmetries of natural snowflakes and cathedral tracery more always on the way; no duplicates, ever

@happyclambell thank you, it's a sound i designed i believe the source sample was the sound of raindrops; i added a few filters and convolved it with an impulse response recorded in a cathedral

@instance_11 beautiful. what's making the "chock" sound?

@michaelmicasso something like that will definitely have to be made soon, focusing on casted metal pieces for now as the manufacturing process lends itself very well to procedural designs

@instance_11 super cool, would love to see procedural tinted glass/stone mozaics too in this style

forms & their formulas

design is dead; long live the distribution

@HAL09999 yes the text is from a piece i wrote some time ago; i felt it deserved a full arrangement, glad to hear it resonated x.com/instance_11/st…

@instance_11 Watched it three times in a row... is the text yours ? Interesting area where engaged content is presented in a form where the aesthetics and meaning unite beautifully.

technologist, you are already feared; do not be meager

@emilyzsh thank you! many things already in the works, excited to share

@instance_11 @patrickc @tylercowen AMAZING CONGRATS

honored to be a recipient of a new aesthetics grant from @patrickc & @tylercowen to explore how designing solely with code can change our relationship with the objects in our lives; my most ambitious projects coming soon

@Jesperish thank you, this means a lot i’ve been a longtime admirer of your work, it was instrumental in inspiring me to make this account and give my own creative pursuits everything

@instance_11 your work inspires me so much. absolutely beautiful.

i envision a world without duplicates