Pilot Risk-Limiting Audit, Adams County Colorado, 2015-11-24

Record of manual audit of selected CVRs via audit_cvrs software

Each row shows the time when the ballot was manually inspected, who entered the data, the ballot (selection sequence number, Cast Vote Record (CVR) number, batch number, and sequence within the batch), the ballot status, the discrepancy for the margin of victory, and notes.

Ballot "Status" values are either "Selected" or "Completed"

"Discrepancy" is "0" if the manual inspection of the paper ballot agrees with the reported CVR interpretation. A discrepancy of "1" indicates a 1-vote overstatement of the margin of victory. For example, if the voting system declared a victory for the "Yes" side of a ballot measure, and it recorded an undervote in a given CVR, but the human interpretation of the associated paper ballot showed a "No" vote, that would be a 1-vote overstatement of the margin. If enough ballots have overstatements, the declared outcome could be wrong. If the human interpretation of the ballot indicates an extra vote for the declared winner, that would be a one-vote understatement of the margin, which would actually increase the evidence that the declared winner won. That could happen if a ballot recorded as an undervote was determined to be a vote for the declared winner, or if a ballot recorded as a vote for the loser was determined to be an undervote.

A two-vote overstatement of the margin of victory can also happen, e.g. if a ballot that the system recorded as a vote for the declared winner is seen to be a vote for the loser instead. The value "None" for the discrepancy means that the manual interpretation of the paper ballot has not yet happened.

Timestamp User Selection#_CVR#_Batch_Seq: Status / Discrepancy Changes Notes
2015-11-24T10:01:17 neal 1_10515_AB-057_13: Selected / 0 Changed discrepancy.
2015-11-24T10:01:53 neal 2_11541_AB-063_38: Completed / 0 Changed status and discrepancy.
2015-11-24T10:02:04 neal 1_10515_AB-057_13: Completed / 0 Changed status.
2015-11-24T10:03:23 neal 3_12587_AB-067_183: Completed / 1 Changed status, discrepancy and notes. Decided not to audit this one since it was part of the other post-election audit and ballots were out of order.
2015-11-24T10:03:42 neal 4_25567_AB-130_10: Completed / 0 Changed status and discrepancy.
2015-11-24T10:08:34 neal 7_30970_AB-153_7: Completed / 0 Changed status and discrepancy.
2015-11-24T10:16:51 neal 9_36269_AB-176_54: Completed / 0 Changed status and discrepancy.
2015-11-24T10:21:55 neal 8_33136_AB-163_103: Completed / 0 Changed status and discrepancy.
2015-11-24T10:25:56 neal 5_29143_AB-146_279: Selected / None Changed notes. got wrong ballot first time
2015-11-24T10:27:16 neal 5_29143_AB-146_279: Completed / 0 Changed status, discrepancy and notes. got wrong ballot first time, right second time
2015-11-24T10:28:50 neal 10_39982_AB-191_122: Completed / 0 Changed status and discrepancy.
2015-11-24T10:40:54 neal 11_43178_AB-205_151: Completed / 0 Changed status and discrepancy.
2015-11-24T10:42:41 neal 12_45811_AB-215_239: Completed / 0 Changed status and discrepancy.
2015-11-24T10:49:18 neal 13_54238_AB-250_91: Completed / 0 Changed status and discrepancy.
2015-11-24T10:50:25 neal 16_72862_AB-324_124: Completed / 0 Changed status and discrepancy.
2015-11-24T10:51:36 neal 15_70087_AB-310_180: Completed / 0 Changed status and discrepancy.
2015-11-24T10:54:09 neal 14_63298_AB-284_36: Completed / 0 Changed status, discrepancy and notes. they say this was done a while ago
2015-11-24T10:56:36 neal 6_29191_AB-147_27: Completed / 0 Changed status and discrepancy.

Generated by audit_cvrs - Neal McBurnett