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See vaibhav_attestation.txt in this directory for Vaibhav Chellani's signed attestation.

Hash of the challenge file for verification:

    41c03ca8 6cc9df98 d80073e6 93c09d46
    42cbadb7 a8752934 049db2dd 79016523
    99d1e13d 90ab9b54 57860f55 914efe1f
    f87f7b5e 7fc86993 774a7236 0aaa716a

response was based on the hash:

    41c03ca8 6cc9df98 d80073e6 93c09d46
    42cbadb7 a8752934 049db2dd 79016523
    99d1e13d 90ab9b54 57860f55 914efe1f
    f87f7b5e 7fc86993 774a7236 0aaa716a

Hash of the response file for verification:

    e8e7293c 3acd49c7 c20418ff 9b2ac179
    304228a9 f47580b5 57367782 6b3ef007
    ee6be1d2 699110f7 efa54ef2 d40cda33
    2da5071b 231e047c 253b11cc 933acc53

Blake2b hash of the new_challenge file for participant #43:

    294dc1ce 3c381dee 7a12ab13 8813ba7d
    c61ba46f 8e1b6165 ee23c623 af42f0a4
    5a090951 5558548a 85c7b1b8 12156ff4
    cb14eb7d 0aa9b35b 4ffdecaa 2bcfe37c

The above new_challenge file: https://ppot.blob.core.windows.net/public/challenge_0043

Vaibhav Chellani's attestation:

Attestation to response 0042

Date: Wed Jun 11 2020 - Thu Jun 20 2020 Name: Vaibhav Chellani Location: India Device: Linux system76-pc 5.4.0-7626-generic #30158816988320.04bbe668adev-Ubuntu SMP x86_64 GNU/Linux Commit Hash: bf852c168676a7afc5dd17b47ff9b8f394aeab8a Challenge: URL: https://ppotin.blob.core.windows.net/public/challenge_0042

Calculating previous contribution hash...
`challenge` file contains decompressed points and has a hash:
	41c03ca8 6cc9df98 d80073e6 93c09d46
    	42cbadb7 a8752934 049db2dd 79016523
    	99d1e13d 90ab9b54 57860f55 914efe1f
    	f87f7b5e 7fc86993 774a7236 0aaa716a

Response:

The BLAKE2b hash of `./response` is:
    e8e7293c3acd49c7c20418ff9b2ac179304228a9f47580b5573677826b3ef007ee6be1d2699110f7efa54ef2d40cda332da5071b231e047c253b11cc933acc53

Time taken Download: (did not document download time) Execution: 3-4 days Upload: about 2 hrs

Entropy Sources: Random Key Smashing by my cat

Side channel defences: None Postprocessing: Rebooted the machine