ETH Paris "powers of tau" test ceremony transcript

Transcript

2^25 powers

Alex Vlasov: 
- make empty accumulator

Blank hash for an empty challenge:
        786a02f7 42015903 c6c6fd85 2552d272 
        912f4740 e1584761 8a86e217 f71f5419 
        d25e1031 afee5853 13896444 934eb04b 
        903a685b 1448b755 d56f701a fe9be2ce 

Empty contribution is formed with a hash:
        661de6f4 1b1150ac 74480855 58e5ecda 
        ae345272 e662da98 51b0ff38 16901a2b 
        2141722a 38a35a31 4b41a53a bba15f71 
        98f30c57 89111186 4081aa38 d3012a5b 

- contribute on top of it

Contributing on top of the hash:
        661de6f4 1b1150ac 74480855 58e5ecda 
        ae345272 e662da98 51b0ff38 16901a2b 
        2141722a 38a35a31 4b41a53a bba15f71 
        98f30c57 89111186 4081aa38 d3012a5b 
        
The BLAKE2b hash of `./response` is:
        669c599c 1698c838 8c2ab5f7 0a60bfac 
        5a9cd30e 9203dd8f e9f296ed f5eeb62b 
        dac15b56 cfc1d90e 4607d33c d3502e90 
        8ccd52ba 0f846871 04e7ea3f 7bd5618d 
        
- decompress

Previous challenge hash
        661de6f4 1b1150ac 74480855 58e5ecda 
        ae345272 e662da98 51b0ff38 16901a2b 
        2141722a 38a35a31 4b41a53a bba15f71 
        98f30c57 89111186 4081aa38 d3012a5b 
Response was based on the hash
        661de6f4 1b1150ac 74480855 58e5ecda 
        ae345272 e662da98 51b0ff38 16901a2b 
        2141722a 38a35a31 4b41a53a bba15f71 
        98f30c57 89111186 4081aa38 d3012a5b        
Hash of the recompressed contribution:
        669c599c 1698c838 8c2ab5f7 0a60bfac 
        5a9cd30e 9203dd8f e9f296ed f5eeb62b 
        dac15b56 cfc1d90e 4607d33c d3502e90 
        8ccd52ba 0f846871 04e7ea3f 7bd5618d 
        
Contributor 1: Jordi Baylina

Contributing on top of the hash:
ed643bdd 645c1b3a e5342452 32f79169
9c90dc19 5faf90f5 de03c0dc ca6d3159
89c5236a b55dc2c6 21a68cd6 0ec5ac94
29ac9639 0585f865 7a6a8631 bdcf3d78

The BLAKE2b hash of ./response is:
bb7c2b7a 9b08aa4b 4273ff8c 63157cda
ce4fcd6e 8f094a9b 11a45976 b149856f
26b5073e 6fc6bab9 497a1e51 de162515
517ac03b a38aef27 d35634b8 66f3ee57

Decompress a contribution 1: Alex Vlasov

Hash of the `challenge` file for verification:
	ed643bdd 645c1b3a e5342452 32f79169
	9c90dc19 5faf90f5 de03c0dc ca6d3159
	89c5236a b55dc2c6 21a68cd6 0ec5ac94
	29ac9639 0585f865 7a6a8631 bdcf3d78
`response` was based on the hash:
	ed643bdd 645c1b3a e5342452 32f79169
	9c90dc19 5faf90f5 de03c0dc ca6d3159
	89c5236a b55dc2c6 21a68cd6 0ec5ac94
	29ac9639 0585f865 7a6a8631 bdcf3d78
Hash of the `response` file for verification:
	bb7c2b7a 9b08aa4b 4273ff8c 63157cda
	ce4fcd6e 8f094a9b 11a45976 b149856f
	26b5073e 6fc6bab9 497a1e51 de162515
	517ac03b a38aef27 d35634b8 66f3ee57
Here's the BLAKE2b hash of the decompressed participant's response as `new_challenge` file:
	e43031c1 0de60ef2 df515803 3d3d9d91
	1d79c650 a7ee90c0 db1ad9cf ef78e7ef
	4883ce53 7975a5cc 871ffb29 f92db0c2
	92d9ce20 273cd15c 977e91f1 29142342
	
Contribution 2: Remco Bloemen
challenge file contains decompressed points and has a hash:
    e43031c1 0de60ef2 df515803 3d3d9d91 
    1d79c650 a7ee90c0 db1ad9cf ef78e7ef 
    4883ce53 7975a5cc 871ffb29 f92db0c2 
    92d9ce20 273cd15c 977e91f1 29142342 
challenge file claims (!!! Must not be blindly trusted) that it was based on the original contribution with a hash:
    bb7c2b7a 9b08aa4b 4273ff8c 63157cda 
    ce4fcd6e 8f094a9b 11a45976 b149856f 
    26b5073e 6fc6bab9 497a1e51 de162515 
    517ac03b a38aef27 d35634b8 66f3ee57
The BLAKE2b hash of ./response is:
    3dbc2033 e396413f 2419cc7d 63297325 
    9185006e 6c53d6de eea465f5 7627a983 
    b5852723 aab29df9 193dbb1e 30e99190 
    bd764c50 98f99dc3 ed8dab0e 6124c676 

Decompress a contribution 2: Alex Vlasov
Hash of the `challenge` file for verification:
	e43031c1 0de60ef2 df515803 3d3d9d91
	1d79c650 a7ee90c0 db1ad9cf ef78e7ef
	4883ce53 7975a5cc 871ffb29 f92db0c2
	92d9ce20 273cd15c 977e91f1 29142342
`response` was based on the hash:
	e43031c1 0de60ef2 df515803 3d3d9d91
	1d79c650 a7ee90c0 db1ad9cf ef78e7ef
	4883ce53 7975a5cc 871ffb29 f92db0c2
	92d9ce20 273cd15c 977e91f1 29142342