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KZG Ceremony Special Contributions

Table of Contents

01 - Cryptosat

The Cryptosat team kicked off the Special Contribution period with a contribution from space aboard their Crypto 2 satellite. Read about what they did and how on their blog.
Ethereum Address: 0x15be596f2245ab321d8a357f827006520330a98c
Start Time: 2023-04-04 00:00:00 UTC
End Time: 2023-04-05 15:00:00 UTC
Client Implementation: go-kzg-ceremony-client
BLS Library: gnark-crypto
Write Up Cryptosat blog
Tweet by contributor: Twitter

Powers of Tau Pubkeys:

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Additional Links:

Cryptosat

02 - The KZG Marble Machine

The KZG Marble Machine is an artwork\contraption with different sections of track showing off different phases of Ethereum's history. The machine uses 23 sensors to measure small fluctuations in each marble's run as well as various environmental factors to ensure the randomness is unbiased. Read xofee.eth's writeup here or even 3D print your own machine.
Ethereum Address: 0xFF141bFc450c57Ad84eBaFbD09ffa94A268a7aaE (xofee.eth)
Start Time: 2023-04-06 16:00:00 UTC
End Time: 2023-04-06 20:00:00 UTC
Client Implementation: go-kzg-ceremony-client
BLS Library: gnark-crypto
Write Up xofee.eth's Medium article
Tweet by contributor: Twitter

Powers of Tau Pubkeys:

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Marble Machine

Additional Links:

03 - Mr. Moloch's Ephemeral Album II

smartcontracts.eth brought 40 members of the New York Ethereum community together to make an album together over the course of a day. The result was a an ephemeral album: attendees got to listen to the music while it was recorded by 4 air-gapped laptops running USB-hosted Tails using their onboard microphones. Kelvin's write-up here.
Ethereum Address 1: 0x3795a5115626d4ada732efbfd51d70d4b30832ff
Ethereum Address 2: 0x4cdc4f412355f296c2cf261210cc9274404e442b
Ethereum Address 3: 0x68108902de3a5031197a6eb3b74b3b033e8e8e4d
Ethereum Address 4: 0x3a953298098cadcb621a40c1efcfb7dd73b727af
Start Time: 2023-04-08 20:00:00 UTC
End Time: 2023-04-09 04:00:00 UTC
Client Implementation: go-kzg-ceremony-client
BLS Library: gnark-crypto
Write Up Blog post on Kelvin Fichter's website
Tweet by contributor: Twitter

Powers of Tau Pubkeys:

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Album creation Hardware destruction

04 - Dog Dinner Dance Dynamics

@saint-rat fed their dog, Charlie, biscuits which they had scatted over the floor. They then used a python script and computer vision to track the location of Charlie and the biscuits as he ate them. This information was folded into the entropy contribution before destroying the SD card and flash-drive used by the Raspberry Pi for the contribution. Read the details here.
Ethereum Address: 0x051f77131b0ea6d149608021e06c7206317782cc
Start Time: 2023-04-06 16:00:00 UTC
End Time: 2023-04-06 20:00:00 UTC
Client Implementation: go-kzg-ceremony-client
BLS Library: gnark-crypto
Write Up @saint-rat's Medium article
Tweet by contributor: Twitter

Powers of Tau Pubkeys:

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Charlie is a good boi Charlie is a hungry boi

Additional Links:

05 - CZG-Keremony - a pure JS KZG ceremony client

CZG-Keremony is a KZG ceremony client written entirely in JavaScript by the DSRV Labs team. Under the hood, it uses @paulmillr's [https://github.com/paulmillr/noble-curves](noble-curves BLS implementation), so this is an end-to-end contribution done in pure JS. rootwarp.eth and @kim201212 performed an airgapped contribution on a RaspberryPi 2 before destroying the SD card.
Ethereum Address: 0xa455150c6b91d08faa57dc664b916e1ddd1c4030
Start Time: 2023-04-11 08:00:00 UTC
End Time: 2023-04-11 12:00:00 UTC
Client Implementation: CZG-Keremony
BLS Library: noble-curves
Tweet by contributor: Twitter

Ethereum Address: ``

Powers of Tau Pubkeys:

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CZG-Keremony

06 - Improvised Theatre

Members of the Student Theatre Association in Eindhoven, Doppio, recorded an imporv theater performance as a source of entropy for the ceremony. The performance comprised of both acting and singing using the structure of a soap-opera and a "revolving door" to guide the performance. Read more about what they did on their blog post.
Ethereum Address: 0xb70aa3d2b6dfcaa804c45ed0bfeb785562db42dc
Start Time: 2023-04-11 20:00:00 UTC
End Time: 2023-04-12 00:00:00 UTC
Client Implementation: go-kzg-ceremony-client
BLS Library: gnark-crypto
Write Up Write up on Github
Tweet by contributor: Twitter

Powers of Tau Pubkeys:

2^12: 0x93d7ba163530c3d6f70b3f89d0bdd4986e53aad52d2279c75ee967ee080f32209a960a7d3070c41b1c94db0e4633c30c1814da27415289f989a524602c3455f8d82756b2c8c9f2e77a2c4e8bc2460ef137fcc3c5f46d4f16b1ab39b1345ac697
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Improv Theatre

07 - A Calculating Car

Stephen Solis drove around in a car equipped with a Comma 3 self-driving module. He then recorded the data from the car's ODB port to an NVMe drive which was destroyed after using the data as an entropy source.
Ethereum Address: 0x192ccacdd6da99463e1e8a76223ea07a6cde3479
Start Time: 2023-04-12 20:00:00 UTC
End Time: 2023-04-13 00:00:00 UTC
Client Implementation: go-kzg-ceremony-client
BLS Library: gnark-crypto
Write Up TBD

Powers of Tau Pubkeys:

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_BLS Signatures:

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Self Driving Car dash view

08 - A noisy city

Jordin Coppard recorded the noise of Sydney from a balcony and used the raw data stream as an entropy source.
Ethereum Address: 0xf4BA33f683aCA91128A8915de6664cB662e59af2
Start Time: 2023-04-13 04:00:00 UTC
End Time: 2023-04-13 08:00:00 UTC
Client Implementation: go-kzg-ceremony-client
BLS Library: gnark-crypto
Write Up TBD
Tweet by contributor: Twitter

Powers of Tau Pubkeys:

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Sydney can be a loud place

09 - Exothermic Entropy

The Mach34 Team detonated 4 pounds of a binary explosive called Tannerite and used a RaspberryShake to record the seismic activity as entropy. Afterwards, they destroyed the storage media with a rifle. Read about their escapades here.
Ethereum Address: 0x147d740aaf617b46e85304d2590acc20a90cee7c
Start Time: 2023-04-13 20:00:00 UTC
End Time: 2023-04-14 00:00:00 UTC
Client Implementation: go-kzg-ceremony-client
BLS Library: gnark-crypto
Write Up @outsideranalytics Medium article
Tweet by contributor: Twitter

Powers of Tau Pubkeys:

2^12: 0xb4def5b4585f28b55ea240ecb018b1e0291ef69860629e8fc6561a5a87d45d988c0f156c888c0a786dba4c23df0e6a4c11b1827f2d35466af57dbafd9b9487a0c194f2fbb68ed16da790804c8764016bacea9f9830871bd77643da3574d90c47
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Boom

10 - The Sferic Project

Digital artist, Matt DesLauriers sampled the Very Low Frequency radio (300 Hz and 13 kHz) radio spectrum on southern coast of the United Kingdom to capture lightning strikes and other atmospheric noise collectively known as sferics. This data was then fed into the ceremony as a source of randomness.
Ethereum Address: 0x32262672c6d1b814019f4ca4e2fc53285a919704
Start Time: 2023-04-14 12:00:00 UTC
End Time: 2023-04-14 16:00:00 UTC
Client Implementation: go-kzg-ceremony-client
BLS Library: gnark-crypto
Write Up Matt DesLauriers' blog post
Tweet by contributor: Twitter

Powers of Tau Pubkeys:

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Measuring atmospheric noise Contributing spheric entropy

11 - The Great Belgian Beer Entropy Caper

heeckhau.eth and sponnet.eth contributed entropy by video-recording the pouring and fizzing of Belgian beers using a webcam and an AVADO i5 box before destroying the USB flash drive used for live-booting Ubuntu with a hammer.
Ethereum Address: 0x8dd4e78567201d1d9f8459a265f4d0ae81ae3c83
Start Time: 2023-04-14 16:00:00 UTC
End Time: 2023-04-14 20:00:00 UTC
Client Implementation: go-kzg-ceremony-client
BLS Library: gnark-crypto
Write Up Write up
Tweet by contributor: Twitter

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Recording the bubbles Contributing spheric entropy

12 - KZGamer - summoning Dankshard with a dice-tower

Justin Florentine built a dice tower that could both collect entropy for the ceremony and help determine the outcomes of his table-top games. The dice tower was a sealed box which rolled the dice before collecting them in a sealed chamber in which they were photographed by a Raspberry Pi (and camera). Then computer vision was used to read the dice which were used to determine the success/failure/damage of a given roll while adding the dice values to an internal entropy accumulator. A trapdoor then opened to return the dice to the player. By the end of the game, 1024 bits of entropy had been collected and the SD card used in the Pi was burned until destruction.
Ethereum Address: 0xf51d203536ea8b5bfbc06b3a1c21514766b22bb1
Start Time: 2023-04-15 00:00:00 UTC
End Time: 2023-04-15 04:00:00 UTC
Client Implementation: go-kzg-ceremony-client
BLS Library: gnark-crypto
Write Up Justin's Write up
Tweet by contributor: Twitter

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The dice tower in all its beauty Gaming table with tower in the background Burning the SD Card

13 - Catropy

Proof of Cat or Catropy is a project to collect entropy from cats playing with a ball. This was done by embedding a custom PCB with an ESP-32 microcontroller and an MPU-6500 6-axis IMU into a knitted ball and handing it to cat (or human). The ESP-32 would then collect data from the accelerometers and gyroscopes, hash it into an entropy accumulator and serve that entropy over WiFi to the server performing the PoT calculations. Visit proofof.cat for details on the multiple contributions, hardware, software, a video of the contribution, and how this project went further to support cat shelters.
Ethereum Address: 0xdb08c59302e8449fb5f2f6ccf7dde974e678a31f
Start Time: 2023-04-15 08:00:00 UTC
End Time: 2023-04-15 12:00:00 UTC
Client Implementation: go-kzg-ceremony-client
BLS Library: gnark-crypto
Write Up proofof.cat website
Tweet by contributor: Twitter

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Catropy PCB Proof of Proof of Cat

14 - srsly - an iOS KZG Ceremony client

srsly is a KZG Ceremony client (and BLS library!) for iOS written in Swift by @srikrishnamurthy. The library is available on GitHub vishady721/swift-kzg-ios-client.
Ethereum Address: 0xdf369cde73ce4d75deba0d9a6f67873ea9350b9b
Start Time: 2023-04-16 20:00:00 UTC
End Time: 2023-04-17 00:00:00 UTC
Client Implementation: swift-kzg-ios-client
BLS Library: custom BLS library
Write Up Witnesses Published on GitHub

Powers of Tau Pubkeys:

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