Biden-labeled voice sample pair

These are two public demonstration WAVs labeled locally as synthetic and human speech. Their filenames and labels do not establish that either recording depicts Biden, came from a particular event, or is an authenticated original. The source registry has no pinned upstream record for either file.

The figures below are uncalibrated Worker decision scores, not probabilities or evidence of speaker identity. A score at or above 0.5 triggers the synthetic verdict for this frozen detector. Two selected examples cannot estimate real-world accuracy.

Locally labeled synthetic speech

File: deepfake_biden_election_robocall.wav
SHA-256: d711cc678cab210b92258e70dcfffd4d1a6e8875ec4bc6e45f8a995c94e36a9a
Worker verdict: Synthetic detected (technical enum: SYNTHETIC_DETECTED)
Decision score: 0.5498 at the fixed 0.5 threshold

Source status: unverified upstream record. The label is a local assertion, not independently authenticated provenance.

Locally labeled human speech

File: human_real_biden_speech.wav
SHA-256: d2e9626278c6940800602b218fe7f75719669da698bf0322194d265032c9a727
Worker verdict: Human-like signal (technical enum: AUTHENTIC_HUMAN)
Decision score: 0.2315 at the fixed 0.5 threshold

Source status: unverified upstream record. The label is a local assertion, not independently authenticated provenance.

Verify the published evidence

Download the WAVs and compare their SHA-256 digests above with the 29-sample registry. The Worker score ledger records the displayed decisions. Release provenance links the exact public DSP source snapshot and its hash. The selected corpus report shows the detector's wider limitations.

Neither the local label nor a detector score verifies a public figure's identity or the origin of an alleged recording.