See wei_attestation_0040.org in this directory for Wei Tang's signed attestation.
Hash of the challenge file for verification:
79043f5f 7a2e81a2 e7aca5bf c02a375f
6b3beb0c 5aa7e3f8 b942201a f3e0d43e
b33efd3a 10b10323 8a93eaad 3462180e
56eea585 e4f30715 3df06e81 d6150275
response was based on the hash:
79043f5f 7a2e81a2 e7aca5bf c02a375f
6b3beb0c 5aa7e3f8 b942201a f3e0d43e
b33efd3a 10b10323 8a93eaad 3462180e
56eea585 e4f30715 3df06e81 d6150275
Hash of the response file for verification:
276a5a94 26cee943 0cc3c64b 6049f912
4a8c4297 3ffec2bf a60983b2 37fec0aa
98247803 596d2ac1 2076bf37 7104ab68
c2c2a879 fbc7fcf8 b9168b52 5f1f7916
Blake2b hash of the new_challenge file for participant #41:
b262f934 ab2368cc aa86772d 586040a5
1d284338 d9f41f47 833c19a4 335d4fc6
e8e8eccd 17723291 b92bb348 4ef6f6d1
99563e61 b2a49634 e081d7c5 44e5bfed
The above new_challenge file: https://ppot.blob.core.windows.net/public/challenge_0041
Wei Tang's attestation:
____________________________________________
PERPETUAL POWERS OF TAU ATTESTATION NO. 40
Wei Tang
____________________________________________
2020-05-30
Table of Contents
_________________
1. Signing information
2. Basic information
3. Hashes
.. 1. Challenge file
.. 2. Response file
This is the attestation No. 40 for the Perpetual Powers of Tau ceremony.
1 Signing information
=====================
The PGP key used to sign this message can be found at
<https://that.world/~wei/pubkey.gpg>
2 Basic information
===================
- *Date*: 2020-05-28 to 2020-05-30
- *Name*: Wei Tang
- *Location*: Berlin, Germany
- *Commit hash*: `bf852c168676a7afc5dd17b47ff9b8f394aeab8a'
- *Time taken*: 3 days
- *Device*: Undisclosed
- *Entropy sources*: Undisclosed
- *Side channel defences*: Undisclosed
- *Postprocessing*: Undisclosed
3 Hashes
========
3.1 Challenge file
~~~~~~~~~~~~~~~~~~
`challenge' file contains decompressed points and has a hash:
,----
| 79043f5f 7a2e81a2 e7aca5bf c02a375f
| 6b3beb0c 5aa7e3f8 b942201a f3e0d43e
| b33efd3a 10b10323 8a93eaad 3462180e
| 56eea585 e4f30715 3df06e81 d6150275
`----
`challenge' file claims that it was based on the original contribution
with a hash:
,----
| ed29ba79 b1392ba7 4ff572b8 6ed743b9
| 3b94da14 e54eb4a5 4d2fa6f0 cbd47b99
| 13516c95 f53b6a07 845676c5 1b081f2d
| 64a14d26 0809d9bb 2db1bf8d 9bccf584
`----
3.2 Response file
~~~~~~~~~~~~~~~~~
The BLAKE2b hash of `response' is:
,----
| 276a5a94 26cee943 0cc3c64b 6049f912
| 4a8c4297 3ffec2bf a60983b2 37fec0aa
| 98247803 596d2ac1 2076bf37 7104ab68
| c2c2a879 fbc7fcf8 b9168b52 5f1f7916
`----