The Special Contribution Period for the KZG Ceremony ran 01-16 April 2023. This allowed participants to contribute in ways that may not have been possible in the Open Contribution period. While the Ceremony only needs a single honest participant to provide a secure output, Special Contributions provide additional assurances beyond a standard entropy contribution:
- computing over the entropy in an isolated environment (eg. on an airgapped machine, wiping and physically destroying hardware) means that it’s unlikely for a malicious entity to have extracted the entropy at any point.
- detailed documentation (explore links below) attached to real reputations are unlikely to all have been coopted or faked by a malicious coordinating entity. The records are available for future observers to explore.
- different hardware and software limits correlated risk
- differentiated entropy generation (eg. measuring an explosion) prevents the Ceremony output being compromised by some failure in the regular entropy generation (eg. the hosted interface)
- contributions involving large groups of people are harder to fake than those with only one person. This allowed participants to contribute in ways that may not have been possible in the Open Contribution period. For example, needing more time than the typical slot or a unique method of generating entropy that included a larger group.
This post is a public record of the Special Contributions with information on methodology, where to find them in the transcript, and links to documenting media.
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.
Powers of Tau Pubkeys:
2^12: 0xb421fda424006dd5a8ab53874570fd39abda0fcf9dc6cda98864435b00e0e6c050bccf78c08e0b911b3bb28572bded470beb7be25005316280ca624315855e2f281f80296f6f9df229b37f9d65ed4db364659f9c952ba6c3340d4d87990f9945 2^13: 0xa75ab853ccb44441209ff9dda2750c9a2e20057556242512bc4e10eba51314f30136bdea955e076ea45042e723bc0dc917ec9b81ba358239df68d66750d3e19b16760c3eff1831847f6d081c5152b8bcd7eaf129250b7b5f0fbd39b7077b3ac4 2^14: 0xa596762cb98d5f8e3df3f2caa15270f1e97cb138c75dc7316371884b33756c68e2e78cfe6821a032dced340aab9a861f09de5018b7c02ee6e5fb5e1bfc9cbcb865eb3fbedaeb0d9020a11137436b1c3a50749f54e9a4c33028d1153a3d4ef4e1 2^15: 0x86a6823f45d6fdc7968494b69ba099194509f702e380c3730b98cf81a08a7853e0e90c22e9073543b03854bf91e3d96d1718d373dee465ceccd6075bfa53fa740b7cbfd422adf765a5b970b41a069d8fb2394f6d09ab6c82404913586ab77192
Additional Links:
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.
Powers of Tau Pubkeys:
2^12: 0x8474cca7c0ad72f912ee6ea901becc3893de4bce965278befca5b06a2e4ad308ed9d7f9543598f69707e16af81c47de60f1ac5286fb2bc4bf6c9cb868c3f2ce9531241c77325a03cce8f7a2731931cefeb179070ba75336be918313d85261ad7 2^13: 0x859aedfa6f8070522fdd0df84b6233671a6221e611914e198a81a78684d3b0deb0a6d4248f0562b2f3e01ee342e731220b595db2758907c8d1d353f4e8c606ccbefc62efbf13e4a2fed8001c308db198c121b9dfda700756f466dba39c3936d5 2^14: 0xa1fbe4bbee1321f97f4ebbbd98632c84ca61623adf1d476a39a2f90929116e82dca4cb53d18ad319c7d561f1623ac5e903b83360923e3c1b23c0bbfd0d472691a7f9c273f62bedf16daab0320d3bffbc33b55814c05e5b7e804ec8b6700b0b6b 2^15: 0xb543a678fa7ce903883ed00aa2b344a0c34e9539a216bf2f36ba25e08f06037291e5a08923c8ab19aafc75891c8633fd0b431806039dd815aeb1eb59c382cba75db5563ebbcd51f317f78369d0ebe639d80850b621938a56bfe5a7a1dc149f48
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 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: |
Powers of Tau Pubkeys:
2^12: 0x882529906e627202a0d0d4c46da1fe41a605c300ae79474354251686de6a204ec3ed248534243f479c04e14321e45b6819bff99ed6591d8cce562f760a943c65b1cb33766c486fd7b48bd3cf5be0a8c4f8c7e9700cb0ffa84074466edaeaa37e 2^13: 0xa8c9e7187942b8afdb7bf780bf1aa2fa271ae2df62a7d4811ff6b24fc18261f66261ba565a49abaf2f6d79f55e5ab24005f8c426587b478f447dc00a7b9b9db74ce3023b8d14a9b682b7c39fe27b93d939e7c4e992f66692812bb3c56eb5def5 2^14: 0x8eba68dc820ffb0d66f8bc58c30b6614981b09c43172e73f56be1810859a9d5b19d7a5c312d89bbff3d3557b961584a113390bea2b5e2dbf02dd182fc22fa6d8fa25409e1a17dc47c96eebea94afbe7afcecafd70133fdc40bd727b9397ec136 2^15: 0xb17708a0804ba5b7108a67dfeffd54e09a387118cec5e8f99e47071aa97d70c29bdedce93201b84aadee4e0fe74948340947aacfaa543e61c6f7ee297e9d92183e1d2f9b916e6414f8e605fc391845029012ba4ed823ec6bc7935006e5aa43d3
2^12: 0xa7759b45d54e451b9e1b8c75f6989ddedc5883faf758cf24c164f28f18a9c28a3bf5cc9c6d373be2179ee3799e84226c0844e387756997ef9f17b3a31aefc128a58b387cdd5f9769c7a44cc617473c649fd6898e76c1fe6a9dbfc9c558f2830a 2^13: 0x8253d83311bbf25608cef844f7fb1fb242199989f2b570ae8e47012e4de4a6411e0ff124d408c6e36665d2537ba8015a071b27292decff76b24ab9ed1801fb9417b09610a8f5493023cc0369a4928e4b0c245f72b9a25dbabc746c1e41332c3e 2^14: 0x8bbb410a8343e7b58074c5c565128aa56770d24dead438d91b21eb8d6c96d386f7c848f11449c9b65c41889a17ec703006bd98feac3b1f4c1bb3306c9442bf6d00e486afd8b921bc13a372806c2120271d037725dfa30c215ef3ed5ba3db4a98 2^15: 0x824ad6476d49e2a5e450298f7a5d772e435f221e71b5064b2f00f1bd10df2fa8b5c07cdbd5a25491dbbd87b01c7fbdb60264ecbe46700cfdd85582b2be250919bc080ef70f56c81093dc5871a4fc291a9f152839dd309d4d641c3a70a50554fb
2^12: 0x85589d23b34e05459dffe32c0056d38c5169febc9057d2b27b6035dcff2d0c22bfb4fa5c35320a60a5be90f74c8854a00f9a7fab86abd4ac7f7e9fa4596a81eb9cf0a52b996e590ce0405d66b64b77e3b647eb442afff7ce458b140da71ac3f5 2^13: 0xa6f7823adc830bf825d27787086172969a5240ec8cd5b961fdd96974cba1b1f8a16765b618fabf23d22ad9c6c418f32711f208091a210a632ee0bb321dad0dc5e1cd69dd75116a0ac82bd48e75070501ead7548ec13f37030df293e7ee285c89 2^14: 0xb0eeccf05f44ff300239d08ae4d560174b56940cd7883d2df0b5af37169bf5efa459d70bed7f6ea78ce358eaa33834c314e18d5435cdc119f18058223bbe0d3b6e54fdc82d3f1f13acb31f62153683b44c71654a46fa240ab442e5dc41eeb8ab 2^15: 0xb5897c2bc22f85b1b058e128782946cc1542ff335056bd4c5862f1c01fa54955ff521840fcc4798fbf02c0550b3faba91359a221b1290583a69f8ce45573655d11d8c16d5ca23fa1b97dc9502247eccc85b27ac2f02ee6d76024dd17c76c3d71
2^12: 0xa5b8ebc3d76ee03334da93a3fbc63a4378269d02531c1b29b22b63795e25db7a0f46693be4624b2c1d157f651c3226fe00b6d6c2011589f68badb272e52268fe0522da249e28b9beb325bc19fd0840c4cee4859b9c0ebe0791ae74444c725552 2^13: 0x8cb45dedabb4a944d3d53f842e2ed7214fcaf10c4138119e72f0a400d9c2615c8621e83f2d00f16cef5beca4c54422ce06524f9eea82bb7cc3d7a5f750b8761d4667c84556ecc9c1670f8013d4bad903131d714c9373ff4549c991aaa26aad3d 2^14: 0xb789d13d48b2969c493f11bb9b6612506273cf092abf9a104875af070d6f3797fbe8ed0f9f370b6d7c4b8fe753b6ed3501bdf76aa835bd2e05f4345cf8c5f14d99949d43be8e94b6986cf13576efc3d56de54f5ebbed5112990c6a9b1cf2cf1e 2^15: 0x80a7166c5804c2b0c621125605d4e9ed11a997b96d5e4ee0c3118271d4307e02aa50d08ef159da25388393c492331aeb0d9dbae554f7a84eb6fd9beaf97ef1989fb5f0231b1cfc5d4021ac730b7408725126a1a92e030fbfe8cb0c5333741239
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.
Powers of Tau Pubkeys:
2^12: 0x88b8e361e6912a4e9e01ed7adea527f2048278e2df20c21d8bc963ed9bfe2be59d6e6d0634656a924096b3da252a24b310c821c97613ff3fcfbf81eb37331c0d1f35d1fc68a40b9f2914f794b777829783e72539f47234b606291237974045e6 2^13: 0x89683cb512dca33e41e19b71354e461fe3f9c02985a64f5d6475d6b2b3d8bc923e35b4f465f99d23f03e7398157c111c0f0412868cd8a2dd33f55728e73cea2abb5f32c5cc13ae6d3f9b455ab8f4ace09d251476054722c2d373d2033b5d7fcd 2^14: 0xb228e137e41e89c07e6ca0d74bcb38a48a3f56de222e7b643d5e2d796a0f095d009bef7832c513be7e0422c5ce9b1c2603fd2614e6b9778387606c45c11083dd410cfb3e0dbef4f0461b3c72b6702577d1dbda4c2f64c71b288ea79157fd8e9d 2^15: 0x8e1cb174735fdb0c08218ac53ac91b02e3b3e58eb4c2fa860d08958c93b3e9b58f91a46eef5a594e709472d5e3eadf3c0d601086e4b5ed73ef2d0fc3c745e0ba716661f1bc1ed4570b12fbe49d66c950c9e9e4e97641a5f819b3c99397461f19
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: |
Powers of Tau Pubkeys:
2^12: 0xaf4de210b2cf4dd36cad375b215748cf226fbb1c6bc700c563881bd5cf5e6fd74b092f8bf32e3dffe3dfbec16032d88c0058184951521a32b02a5fd9c3cde14f2f78d2149b2e7e9d175c70408f2e89e0af9e4cc5b2712754e6185423b381b3b1 2^13: 0xb45ecbf063b0c558a726c18e9aba1b87a71cbc0553f696f8de1fd2c6eed741808ff17a9b6578b01d8eabb85ba70f7392101133305b11f8ae6b160da6e3c8ddc7c58b853e142ede847bb2c1fc61b4289ac251508af5d0b464f739f5192fc1e44a 2^14: 0xaba601aa8a77c671835670f1c2d402ea804b85b74f3be6cf186680515155ba4558d9d169bea9238eb1d5f4ffb3276d2415f5014175aec71e9a4c52fc716090734bb22ee1e7c8f425cc0e5d4996110f882e7f46cb12029cc93db72db317849a70 2^15: 0xb4f7516dbab3beccb7ddc2ec8852dc0c131e89b59becbec89d9e30ba6a121e7002e17da431924b5a21d47d215ac73a5e0e8bf8604909d9cde9115abd4ee1d859186461d8c53511cfc7114e1118fe899ab82dc4022adc41e70a08f07abffe2591
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.
Powers of Tau Pubkeys:
2^12: 0x93d7ba163530c3d6f70b3f89d0bdd4986e53aad52d2279c75ee967ee080f32209a960a7d3070c41b1c94db0e4633c30c1814da27415289f989a524602c3455f8d82756b2c8c9f2e77a2c4e8bc2460ef137fcc3c5f46d4f16b1ab39b1345ac697 2^13: 0x87ed4d56364f6348fab07a27c6676f540ab9cddce390efcf9ee84b9cca2a0ec391be5bcfaae127259dfdc6388680dd75084c99df9dfe27dc089fc8016bc0079e36ea94536056f2712e4c7644f7366c2467b8d4a8f4bf0351473443d78f9de5b8 2^14: 0x8cc3102e8439e4e755544183af743914aec47e341a0a13b2ff857939fd16e0da7f3e741266192ed565e26dde3bca9a17192556efe0c54bacf20826a50cc7478c06fe5c15b379be2d96719db87435ff6622bfc699f77a09a9e86e0ff843cb28bf 2^15: 0xb46c6e844ca35349147f6dbf3bcde313c84cb9992d9593d842dc254220219ec75fb255ce45f762873ed60208ae6ba0c200ac0cca920f15b2250c4c21b8e1793d6fd26810b87559f0516fc28e80620318e83b1afbcda0cb3beb6f4b32e48fa811
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:
2^12: 0x932a946bad415d52f5df4a33400343f234207ac228356e31402d7dc59fa8d070a40fec9845f227473308b928e47d15e50554eb9d98784099ae9918a4c6c69402e1f5123a78a97d4d054fee94d817ea043b3f3eaf9af259ddd209d5e0b7d01ca3 2^13: 0xb3a1d9379b96cdb29aa8f381555efcda1273e9ea8168e9d43e7bf62d461100ec905da84251799e6201c808e670da42d90784856ff819e797ca39ad7510152c048374df8f748327b9a2d5c8f10e220046cb83b71e6eb516bfa627af5e367436e3 2^14: 0x9642b7ea0df52d7c4e0a35b385659551887d6e5fab5458d89cd898b382f6dd2aa82ce49d8db4921ad85741fb347b1a93057b8e1e84687a40fb659550fb1db4afe6924fec2ae1d73efd628f7dc0f9e343319971b7397baa6e24949c1cc243461a 2^15: 0xa5fb2e8b94cc38941e392902875ea3d8d2e2de9a848184ea06a5fe38ba3021b243e52f26019cf849ac624ca20fae5fbd14b7657c4f66922d59412cd7cfb436946f40c0f96e3c7d7a2344336888f6ab905fca9c66717edc69887f227ef09be141
_BLS Signatures:
2^12: 0xa684f7c8f920ec8476783cee786b56a50e98810ea7148c8bc855e798c20de1aa6decf0efc8742599691f941c6690af53 2^13: 0xa602fc258c1944074a0755a3b37394335c5d3eb56cb29ffb03acd4d14bf376c4aebf3f6f2033c6ade2acfe09c3f76916 2^14: 0x866f1f90bf1ed70ed7bfe5d81ba168697899602d7a769c0e3f82b3b5b7deb061d9adbe75e3d1642736deaad65c5e73d4 2^15: 0x85906813236394b76273829318c84552aa93e134d58757c6329ef3231918444f32a3da1d1422248c486e7d151af9599b
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: |
Powers of Tau Pubkeys:
2^12: 0xa9138a78d90473eb2e4d5a2bb141318e7f0a4045e6651a23e0e96a0da596cca944ebc6614e63c2dfdf33e243d072d3f10fe361d14d27b61c956a0765b1efaa456b3e401334c900391a403f5013dabc9099de357a286274f53b8399355534d3b2 2^13: 0x83209b8e3b4b9c85398d1f452d8607b2c0e9b98085484ffc42465237d10324bfc54bbba7064b0a407ce21effd2cf294c087068391b57f9ad6ee65b875e36ecc442f7c2d0997c9dd238d59da72a73cc236320529ac1743ca566dbc28b7b4180bc 2^14: 0xa8705cca3841b4cb715613e8cc856cc765b8f48c6fe4ce157fd98e11ac52cbc602e476dcef39c6d8f4dbbc63686ba41e0e19b53b4f89f3e99f79b86887e30e28dfa63aeebf7577940b13d259be1a09f08016d14ca4b875d42f56998d6bef2c9b 2^15: 0xaf2a56a7e5234950bcde7cc3f31fdb6e5fb8ec7528d05e5b58b0faf696c2a8912fa2a8f20984cd77596fda9da45384e803f8244172ba76300749b0c08754f62ac233e41a14e097cfd67899dfa000e741b88ac995eb9a1865de2400078be06a76
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.
Powers of Tau Pubkeys:
2^12: 0xb4def5b4585f28b55ea240ecb018b1e0291ef69860629e8fc6561a5a87d45d988c0f156c888c0a786dba4c23df0e6a4c11b1827f2d35466af57dbafd9b9487a0c194f2fbb68ed16da790804c8764016bacea9f9830871bd77643da3574d90c47 2^13: 0x84a644c897e4dad1f6626c63c93ba3cf55668fed60dbcab652b5adce691b4908af3b51ce739ecade41902c99c1fe075318733e03b785947e4f500ccc2146604d74b502e229c3ccf3627b03a4bbdc3a27a0ab3eb3bbbfab15599889ec2432613e 2^14: 0xa5e0d95150c9fca0d55f729c5b359622f297bb1a5400fbcbfb65b797441df1f2caa00c6b168df639a754e90c826d7fc311782317901b810c8ef1081887ea24adf2a8ada2690a93211486ec390cb862f93af60f1c1110aa157e0c9fbfadd871d1 2^15: 0xb03b424f983ffa7a36426230f4a55c100cfc1c07cedcb586a0f0a4f3e6bc3a9bf0fff0f72acfcc4d7bf5fc137ec55940022f1858ef9668b8c749602bdff2eaa10c20f2f33c19e35484978751d104d2001cdbb36014f2fb1a7abd4718f60017ff
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.
Powers of Tau Pubkeys:
2^12: 0xb3b911dc87eca0dbd112683c0b4a2de75c7ed54dacecf7e39ad195635f184500b0dc1b1e76e91fc618c271aa90f0c5d1004a62a6770a1c124465b33742f6ce6eeb396f037197a39005e767072aad4d2ebbb4e2a4f2924a2fb75afc2774d1df97 2^13: 0x8275ccada94f3eeef20dde781243fc7b0229e5607b9b1a720a60de25984c8c7dafcfdfa54a6326b27219e94480973ac213560c92a8225c9d9d081459679d648e79552875807c278c2656f12abb267b10d30ff1f060428bc88536b46219147ee6 2^14: 0x8f2287c6b5d5faeb6860bca0fa66c979117f44d7b1aaf01120c167e650bf0483067d4bd6e72e241804fcc6d18a885a4206683ee3459db5ce4e10167a675dec39ff840ee2a7f392f9bd175f7523d2c01a6c3a39268584ccaf0392f537d823bbcc 2^15: 0x96a1bbb71fdaa3d21438505bc651d1033011635946685e3f48e17d3fbbc1fe0f22e92fa359572eaf536edf4d17ac49f307ac3c8c4986d74d5e2edbb5277ee2a5fbc65250bbc1497ba20d51268647e5293677221854202eb40acf4f72b5029a98
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.
Powers of Tau Pubkeys:
2^12: 0xb4df712ca54b240fbc81a5afb52409fa398d8699fa8738825aa68ef9209a813bffced68d86a18a2f6995f5c803d86ce40d4f4eb729a78fbfef2ebe400ebdd847d07b95f197dba5eb8784ec49e6ac6c36990a539f6d11994d43a7dd157648977e 2^13: 0x802a188a831aaee5b64121ea1c31f385a5f0f68145b004fbbfa5ce240396122cf137d7a2c7e0e09a199994fbb350462601008062a60535fd078c978ad7603e2c0e73ab121807b2410653c332282330a59ea1faa8935c69ec08d8c8c3cad44401 2^14: 0x9013192130cc5f1b4476488b8ea2b6e0d6e1dd377faec09afd66d3bf09b99a274206f556acf1b8b78b095a3e0ea16c7f06ad803e1294edb81a890ec290350dd3964e10ad0980d1b306551ca192960149bf1daa6fb381cdae3a68e6a911964812 2^15: 0xa45306ac93de744a34d30a65799ff37eb91e495e3a90299227b818c70a4a6cba2f1e29024d8c3e7adae50dcb96e9ff33195167e902d97e3efc73388c2374265c526cb88bd9bff46eef4080470d17dd46e37d6bfc1c9cee35739ce7e537870fc0
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.
Powers of Tau Pubkeys:
2^12: 0x9157bfd6d53e6f9cd427aa84acfe47e7f1224ab99ac2c606ccea8dec3ba85a73d3b29c74422461697e9d86e36baa7f8d02add99798a40e2f32c2cd7185b13ad86f57fb7df418c708727d9ff2f85cc220f66353408151075785caf78f3b6c4dbe 2^13: 0x92ae7793b9ba21e8dcfa88e4722acd8b5282d0ad9f9407db13b966797d8a98474986e3beb0d6271fb4fe68ea485dd8ff05144addcf1af56f69a2c26ad5e6009b481e77f431247a03c22e458da0f5264e1d0db7e3e5aa6f1fc93cf539271b77fc 2^14: 0x908b21c002bb0a336e8c22da6c5f3ae688c7319f72045eff8817233fbb3c29a652f04a435e4392507462b4530f80db5c102844255ec594c1b15b3b2ae9f3a3797436846f754e8769f4c5450902d2f3d704971fb998881aeea998c64d37198391 2^15: 0xa64a105c21f2d9cff3799ef38203ae6da23b12be6949ab8dd136244de4af918b6bdb4d69537af464c3b3a156f89655720b827a331ad71d3a43ce9420b7b81be6e81b69009824de01b618ea65d2512da82215d75c99fbe9e010df5c51279416e6
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.
Powers of Tau Pubkeys:
2^12: 0x90bb2d0b11f285ed5a9cf06ed435c42dec65e98f7d31a6569d21360ed62ad2e6160d8eec56bddb32c6c0c50b8333908016d1d3684208522be38e5c4d968800fa09d048a5711a5d286c31e5b39861ce2adf65ee4c401569eea12a15a9be2d8125 2^13: 0x8e9ea8bd5cde8c3ec463533850373b1403f906292fb87758e09e42cae4836a3d79ea210f5d117e99b9b84af2e9978ecd197e2a9488c7eaef27e54a8fd4c77190b844edf8378b46a84fef2a0054cf1d53371944edb1a409b2d4dfcdecc3523ae1 2^14: 0xb258f5e8c3b413f594a1e97f797d246a12c0e669bb6d75cbb5fe97e467528fdc3429beabb51b352d162f768a33d366bf022a0a2f35a6ab70f714bd3bbccbb8dff3751bfb86243e18a81a92dba5870d692c910ae757675106a0dac41682382798 2^15: 0x995bc110eff9b401282d4674753f8dff975d78601f1a3695e1c14f99af0b58bf8acf47c1bfff5e3d9100fef5bb2b8a140a415551034eb9494775c512ee5cc9fc47f031dad6b454f96ecd8632e94306ca8f4decf67c6e6a3974a46cba586d84dc
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.
Powers of Tau Pubkeys:
2^12: 0xb2c3a994728990489e9b4baccf2ca2d178478b8adb60e9d339bb8d6305d9a726e20be519208b03189c175d6b1e1231c81079cca38a8fef5b576b714225dab3e46241d18510b19de9639b84e136f3fef055a60ef610ba2daeaf6df03583b80665 2^13: 0xb32320ac9ea45e0e7e83809e441166ff82fb55eaf5b617f04b7971c0972780f41ffab86d5e8b729c4886acf25212cd6102df3edee2367278370ffe71f7021d7abb4dc2b10fb01f965c34c02f249f93b2c2e1de250cd54c094be8561e004f0678 2^14: 0xb9dcedee0b1467900783e50cdd08f9bc849af9cc9ae7f81df3aeecaaec2df83c68525c7fe90adf82a3e6999dad693c451166b3f5304258713dff5faf73ee4d7eedadc18ae80150fe44252b33f4820cb52feb6b1045db54668f2b3a5bd2654993 2^15: 0x8a000e8d0c2a591585307e1a98558f7dbab8d6867297870d70c8d66efb4c72972b84f233bf6b2938c5c2b9d6d009489605a6b547b6aa91bdd0b3fb2c799ccd5774131c1e12d993cd25bf16b682e95c2616e90be0a7302a0b126dedaf16ced798
Thanks to everyone that participated in the special contribution period of the KZG Ceremony!
If you participated in the Ceremony at any point, stay tuned for ways to participate in the public verification of the final transcript and POAP claiming before EIP-4844 goes live.
Bitcoin 
Tether 
XRP 
Dogecoin 
USDC 
Lido Staked Ether 
LEO Token 
