2
votes
A "newspaper in the photo" but for audio? Audible hash/signature/password/watermark for timestamp? What (live?) audio channel validates Proof of Time?
How about embedding a smart contract into the audio using digital watermarking?
Essentially, a trusted encrypted ledger entry could embed the date (or any particular information) such that later on ...
- 41
2
votes
A "newspaper in the photo" but for audio? Audible hash/signature/password/watermark for timestamp? What (live?) audio channel validates Proof of Time?
This might be a forensics question, the answer to which is is the ENF signal (Electrical Network Frequency) which is used in forensics to locate certain associated acoustic and electrical signals in ...
- 8,928
1
vote
Accepted
What are the bytes following a midi note on or note off?
In SMF format files, every event is preceded by a delta time value, which specifies the time from the last event, and is encoded as a variable-length quantity, where a byte with the most significant ...
- 841
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