P14-L04 · P14 · P14-M01
Compare saved observations without inventing continuous monitoring
Prerequisites: P14-L03
Learning objectives
- Compare saved observations without inventing continuous monitoring
- Compute endpoint changes without claiming continuous observation or intervening behavior.
Explanation
An N/N-1 comparison describes two saved observations of the same exact object. It shows endpoint differences. It cannot show every intermediate movement, the cause of a change or uninterrupted provider coverage.
Explanation
Reuse the exact WIF identity from L02. N-1 captured_at is 2026-10-02T06:50:30.221Z, with priceUsd 0.26172428980166795 and marketCapUsd 261493378. N captured_at is 2026-10-02T07:00:29.846Z, with priceUsd 0.2609206096228144 and marketCapUsd 260614125. The pair comes from owner-independent public.zecoin_radar_signal_snapshots; no private Watchlist envelope is involved.
Subtract the UTC capture timestamps: 599625 milliseconds, or 9 minutes 59.625 seconds. Subtract N-1 from N using exact decimal input values: priceUsd delta -0.00080368017885355 and marketCapUsd delta -879253. These are derived endpoint computations, not additional provider observations.
Both endpoints preserve review, riskSignalCount=1, onChainRiskSignalCount=0 and revoked mint/freeze authority states. Their equality is an endpoint comparison, not proof that those states never changed between captures. N has supplied JSON generatedAt and capturedAt; N-1 does not. Leave its JSON timestamps UNKNOWN rather than filling them with database captured_at. Provider coverage, missing intervals and within-window behavior are also UNKNOWN. A sampling window is not a surveillance guarantee.
Historical example
The valid statement is “The saved N value is lower than the saved N-1 value across this window.” The sentence “Price fell continuously for ten minutes while nothing else changed” goes beyond two endpoints and rounds away the actual interval. A price delta does not establish intent, fraud or a financial action.
What the evidence proves
OBSERVED is bounded to the specified saved artifact or explicitly fictional fixture. INFERRED claims name their inputs and assumptions. Two persisted signal endpoints for one exact object; no private Watchlist state or continuous-monitoring proof. N-1 JSON generation/capture times were not supplied.
What the evidence does not prove
UNKNOWN fields remain absent. INSUFFICIENT EVIDENCE does not prove the opposite. No unsupported human attribution, guaranteed safety/profit, financial recommendation or executable transaction follows.
Common mistakes
Promoting UI or aggregate fields into raw provider records; substituting dates across sources; inventing hidden identity or links; treating a timestamp or commercial badge as proof.
Practical exercise
Produce an endpoint table, interval calculation, price/market-cap deltas and an unchanged-field list. Add a gap register. Correct the statement “Watchlist monitored every event, and revoked authorities prove this change is harmless.”
Show worked correction
The table preserves identical chain/mint and both database capture times. Interval=599625 ms. Price delta=-0.00080368017885355; market cap delta=-879253. The five selected integrity/risk/authority fields match at endpoints. Unknowns include intermediate observations, provider coverage/gaps and N-1 JSON times. Repaired statement: “Two saved product observations support endpoint comparisons; continuous coverage, causation and safety are not established.” No private account or live refresh is needed.
Visual specifications
A two-point historical signal timeline with exact endpoint values, dotted unobserved interval and separate rows for unchanged selected flags. Annotate derived deltas differently from saved observations. Never interpolate a smooth path or label the gap continuously monitored.
SPECIFICATION_ONLY — final visual production is not part of this content run.
Checklist
- Name the exact artifact and identity boundary.
- Preserve source/time/dataStatus for each claim.
- Keep OBSERVED, INFERRED, UNKNOWN and INSUFFICIENT EVIDENCE distinct.
- Preserve limitations without private data or current substitutes.
Summary
- Artifact integrity is distinct from factual completeness.
- Origin and timestamp precision survive reuse.
- A bounded conclusion must survive its unknowns.
Next lesson
P14-L05
Tools
Offline evidence-reading exercise only. No provider refresh, private account access, real-money exercise, wallet signing, entitlement change or runtime output generation.
Sources & claim boundaries
- PAIR: Controller-verified owner-independent WIF N/N-1 pair — Two persisted signal endpoints for one exact object; no private Watchlist state or continuous-monitoring proof. N-1 JSON generation/capture times were not supplied.
Evidence classifications
HISTORICAL — Two persisted signal endpoints for one exact object; no private Watchlist state or continuous-monitoring proof. N-1 JSON generation/capture times were not supplied.
Observation date
2026-10-02T07:00:29.846Z (specified product/UI time; not universal provider time)
Review status
needs_review
Visual specifications
P14-L04-V01
Compare saved observations without inventing continuous monitoring
Two persisted signal endpoints for one exact object; no private Watchlist state or continuous-monitoring proof. N-1 JSON generation/capture times were not supplied.
A two-point historical signal timeline with exact endpoint values, dotted unobserved interval and separate rows for unchanged selected flags. Annotate derived deltas differently from saved observations. Never interpolate a smooth path or label the gap continuously monitored.
A two-point historical signal timeline with exact endpoint values, dotted unobserved interval and separate rows for unchanged selected flags. Annotate derived deltas differently from saved observations. Never interpolate a smooth path or label the gap continuously monitored.
Stack each claim/source/time/boundary card at 390 px; keep full IDs readable and wide tables inside local scrollers. Provide the complete text equivalent.
Prose may use RTL; identifiers, exact times and decimal arithmetic remain LTR. Preserve relationship direction.
P14-L04-WIF-N-NMINUS1-20261002-v1
Sources & claim boundaries
PAIR · CONTROLLER_VERIFIED_PRODUCTION_TRANSCRIPTION
Controller-verified owner-independent WIF N/N-1 pair
- Supported claim
- Specific example and exercise fields/claim boundaries in this lesson
- Verification boundary
- Two persisted signal endpoints for one exact object; no private Watchlist state or continuous-monitoring proof. N-1 JSON generation/capture times were not supplied.
- Checked at
- 2026-10-02
https://github.com/Samizghal/zecoin/blob/5ad423a67a3c9892fd4e3b6e3464c4f40a7d1795/content/academy-2/datasets/p14-l04/dataset.json
Dataset provenance
id: P14-L04-WIF-N-NMINUS1-20261002-v1
dataStatus: HISTORICAL
observedAt: 2026-10-02T07:00:29.846Z
source: content/academy-2/datasets/p14-l04/dataset.json
scope: Two persisted signal endpoints for one exact object; no private Watchlist state or continuous-monitoring proof. N-1 JSON generation/capture times were not supplied.