Based on the ideas collected below, we worked with the community and [[https://github.com/uracreative|Ura Design]] to come up with a logo and accompanying style guide. For now it can be found on https://uracreative.github.io/reproducible-builds-styleguide/

== ideas / concepts ==

=== #1 ===

Taken from [[https://archive.fosdem.org/2016/schedule/event/fdroidappstore/|slides from Hans-Christoph Steiner's talk about FDrdoid]] at FOSDEM 16:

{{attachment:hc_fdroid_fosdem16-idea.png|idea #1|width=400}}

=== #2 ===

Using of a circle to represent a build that is reproduced:

{{attachment:R3PR0.png|idea #2a|width=400}}

Source: [[https://gist.github.com/h4ck3rm1k3/560a7e6084534f328c47f28b2935f58f]]

 {{attachment:R3PR2.png|idea #2b|width=400}}

Source: [[https://gist.github.com/h4ck3rm1k3/f0150704541c87995656901ab1866267]]

 {{attachment:R3PR3.png|idea #2c|width=400}}


Author: Mike DuPont

=== #3 ===

 * a circle divided into 3N sectors (= pie chart), where each N consecutive sectors are the same color.
 * 1 color = 1 build
 * N sectors the same color = N builds the same output

Author: Daniel Shahaf

=== #4 ===

{{attachment:r1-logo.svg|idea #4|width=400}}

(Inspiration from https://s10.postimg.org/3qv3imvgp/hqdefault.jpg)

Author: Valessio Brito

=== #5 ===

{{attachment:r2-logo.svg|idea #5|width=400}}

Author: Valessio Brito

=== #6 ===

{{attachment:r3-logo.svg|idea #5|width=400}}

Author: Valessio Brito

=== #7 ===

{{attachment:7.png|idea #7|width=800}}

Author: Chris Lamb

=== #8 ===

{{attachment:8.png|idea #8|width=600}}

Author: Chris Lamb

=== #9 ===

{{attachment:reproducible_thefyrewire1.png|idea #8|width=600}}

From reddit request for logos 
https://www.reddit.com/r/freedesign/comments/59a80v/request_free_software_project_reproducible_builds/d9a3gvr/

Author: thefyrewire1


=== #10 ===

A double helix.

Rationale: each strand of the double helix can be used to completely reproduce the other.  Also, DNA is somewhat analogous to machine code.

See https://commons.wikimedia.org/wiki/File:DNA_icon.svg (and [[https://commons.wikimedia.org/wiki/Category:DNA_helix-structures|the category]]) for a schema of a double helix.  (In DNA, the yellow and green rods come in four kinds each, and each kind of green is always paired with the same kind of yellow.)

=== #11 ===

{{attachment:DrawingHands.jpg}}

"drawing hands" -- nerdy M.C. Escher reference, reproducible builds build each other.  I don't know how to make it into a proper logo, though.

Suggestion from dkg, hopefully more graphically-inclined people can make it better.

=== #12 ===

{{attachment:repro-builds_sketch12.png|idea #12|width=400}}

baking forms…

by Falko Oldenburg

=== #13 ===

{{attachment:repro-builds_sketch13.png|idea #13|width=400}}

by Falko Oldenburg

baking tetris form…

=== #14 ===

{{attachment:logo-sketch14.png|idea #14|width=400}}

by Falko Oldenburg, who is always reminded of "rabbits" when hearing "reproduction"…

=== #15 ===

{{attachment:logo-sketch15.png|idea #15|width=400}}

by Falko Oldenburg; Some more of that rabbit concept, now constructed from the initials…

=== #16 ===

{{attachment:16.png|idea #16|width=400}}

"R" and "B" difference by Bernhard M. Wiedemann:
[[https://www.zq1.de/~bernhard/images/rb/rb-diff2.png]]

=== #17 ===

Inspired by #8, but all arrows pointing to the right, symbolizing that the same source can be built many times but all builds converge on the same result.

I think this idea can work with and without text, and both at high and low sizes/resolutions. 

Just the logo:

{{attachment:rblogo2.svg|width=400}}

With background and text:

{{attachment:rblogo2-with-bg.png|width=400}}

by Arnout Engelen, feel free to use under the terms of the CC0 license

== TODO ==
 * link more existing proposals here
 * actually turn these ideas into actual '''logos''', eg they should work without the text "reproducible builds"

=== #18 ===
Impossible shapes illustration outlined (A+D) and solid (B+E) and overlapping Cubes (C+F) in first color variation.

{{attachment:RB_1.png|width=400}}  

by Brennan Novak and Elio Qoshi

=== #19 ===
Impossible shapes illustration outlined (A+D) and solid (B+E) and overlapping Cubes (C+F) in second color variation.


{{attachment:RB_2.png|width=400}}  

by Brennan Novak and Elio Qoshi

=== #20 ===
Impossible shapes illustration outlined (A+D) and solid (B+E) and overlapping Cubes (C+F) in third color variation.


{{attachment:RB_3.png|width=400}}  

by Brennan Novak and Elio Qoshi

=== #21 ===
Impossible shapes illustration outlined (A+D) and solid (B+E) and overlapping Cubes (C+F) in fourth color variation.


{{attachment:RB_4.png|width=400}}  

by Brennan Novak and Elio Qoshi

=== #22 ===
Impossible shapes illustration outlined (A+D) and solid (B+E) and overlapping Cubes (C+F) in black and white


{{attachment:RB_5.png|width=400}}  

by Brennan Novak and Elio Qoshi

=== #23 ===
Example of added wordmark (2 options) on a monochrome version of the proposed icons.

{{attachment:RB_7.png|width=400}}  

by Brennan Novak and Elio Qoshi

== TODO ==
 * link more existing proposals here
 * actually turn these ideas into actual '''logos''', eg they should work without the text "reproducible builds"




== comments ==

----
lamby: re: your logos: as said, #7 reminds me too much of the logos of https://en.wikipedia.org/wiki/German_Labour_Front and https://en.wikipedia.org/wiki/Strength_Through_Joy and then i dislike for #7+#8 that they both dont really work without the words reproducible builds". and then they both (to me) symbolize endlessly running in circles, and not many builds results in one result
* h01ger likes the _ideas_ of #1, #10 and #11 but i dont consider them ready/suitable as logos _yet_
* h01ger dislikes #2, #4, #5 + #6 - i dont recognize anything in them
----