INDUSTRY FIELD GUIDE
Specialized telemetry clock and lineage data for AI
An observation can arrive late even if its source clock is accurate.
NAICS 517810 · All Other Telecommunications
An observation can arrive late even if its source clock is accurate. Census includes specialized telemetry services here. NASA publishes research on spacecraft telemetry analysis. A provider can prepare a detached practice series to test source time versus arrival time, with no operating system involved. Census specialized telecommunications scope · NASA telemetry anomaly research
Create two dummy series with explicit source and receipt timestamps. Delay one batch and leave a gap in another. Add a corrected clock record. Ask which points can be aligned and whether there is evidence of a missing observation. Score provenance and timing instead of asking for fault diagnosis.
Exclude asset identities, signals, system configurations, frequencies, locations and live traces. Use artificial series or public data with applicable terms verified.
Describe a synthetic telemetry benchmark
Original Fiund exercise
Late arrival and a corrected source clock are different timing problems
An artificial telemetry packet uses abstract values and seconds from a shared fictional origin. The task aligns records, not signals or asset behavior.
| Record | Source | What it records |
|---|---|---|
| TM1 | Series A | Source second 1, value 7, received at second 10. |
| TM2 | Series B batch | Source seconds 0 and 2 received at seconds 10 and 12; source second 1 arrives later at receipt second 13. |
| TM3 | Series C clock note | C source clock is exactly 2 seconds ahead of the shared origin. C record source second 3, value 9, received at second 14; corrected source time is recorded as 1. |
Question for the model
Which observations align at corrected source second 1, and does B's initially absent point remain missing after the late batch arrives?
Show the reference answer and checks
TM1's A point, TM2's late B point and TM3's corrected C point align at shared source second 1. Their receipt times differ and must not be used as the source-time key. B's point was absent from the earlier received batch but is present after receipt second 13. C's correction changes its clock interpretation, whereas B's delay changes arrival order. Neither establishes a physical fault.
- Aligning by receipt time and treating simultaneous source observations as different events.
- Calling B's late point permanently missing or applying C's clock correction to every series.
Fields to preserve
- Series and source timestamp
- Defines the observation's original time reference.
- Receipt timestamp
- Preserves delay and arrival order.
- Clock correction and scope
- Records the transformation applying to C only.
- Availability cutoff
- Shows when a supposedly missing point became available.
Test another case
Ask the same alignment question with a receipt cutoff of second 12. Require B's point to be unavailable at that cutoff while retaining A and corrected C only if their receipts qualify too.
Use invented series and values. Exclude asset identities, real signals, frequencies, locations, configurations and live traces.
Discuss a contribution
Describe the sources you control, the task they could support and what has already been checked. Use the existing-data assessment for an archive or the collection brief for a new recording project. The contributor agreement defines Fiund’s licensing authority and compensation. A guide or fictional exercise does not establish an accepted collection or a sale.