Start at the actual opening
A card enters its history at the supported pack-opening or sealing coordinate with its opening value. Objects must not all appear at the beginning of an unrelated chart range or at the date of a later pricing snapshot.
Recorded evidence
A dated source supports a value at its stated moment under the applicable method. It cannot establish every intermediate market price. Undated snapshots remain undated; chart sampling must not turn missing observations into fictitious trades.
Deterministic projection
Where the admitted valuation rules support reconstruction, the curve can be calculated at a chosen pulse from the held inputs. It is identified as a deterministic projection. This differs from interpolating invented trade history or smoothing a line to make it look more organic.
At transfer and now
A transfer receipt can show an object’s reconstructed value at the exact transaction pulse and its current supported value. The difference and percentage use those two values, with direction indicated by a restrained arrow and color. A zero or unavailable starting basis cannot support an ordinary percentage comparison.
What a gain means
A change in valuation is not automatically a realized return, cash payment or sale proceeds. Supply changes and entry into an aggregate universe have different effects from price movement. Keep the source, units and moment alongside the comparison.
Enough history to compare
A time range needs meaningful supported history. A control that cannot produce a useful comparison should not imply that a complete series exists. The available chart and its method should explain what can actually be reconstructed.
Method, sources and assessment
This explanation describes the supported implementation. Exact protocol requirements come from the pinned Receiz contracts and original sources. A reference result does not qualify a production deployment or a physical device.