See attestation_0070.md in this directory for Bertrand Juglas's signed attestation.

Hash of the challenge file for verification:

    cb46b0b1 b34ec02c 956d0d6c 0e87de94
    e3c18036 6bad8fb4 36a0f15d d8e55d12
    6c0abea7 2763771d 4a3bb416 a9a47b73
    c30b339e 377235a6 a1e7bb1c cc345879

response was based on the hash:

    cb46b0b1 b34ec02c 956d0d6c 0e87de94
    e3c18036 6bad8fb4 36a0f15d d8e55d12
    6c0abea7 2763771d 4a3bb416 a9a47b73
    c30b339e 377235a6 a1e7bb1c cc345879

Hash of the response file for verification:

    38a54513 2bde30e4 c4ef43f9 46fd1658
    41eca466 53c4a3b3 8ea88523 5675094e
    30c15fce d4550597 ad2f8b6e 929f1b23
    8cd75629 1400ef87 9fc03834 01b8d58e

Blake2b hash of the new_challenge file for participant #71:

    21724899 dd80e743 4ae7bb1f b735d0e4
    92ff3661 9ac8786b 9595ee02 ba2ada20
    8ecbde62 d070f30d 1a832e5b f3ad6c2a
    975300a2 b346f205 4c62b70f 7d97bdcc

The above new_challenge file: https://ppot.blob.core.windows.net/public/challenge_0071