Gutter Pair Separator Integrity Checker
Audit observed gutter separator measurements against caller same-issue limits. Missing observations remain explicit. Caller independently verifies observations, reference edition, units and applicability; not a grading-service certificate, authentication, conservation treatment, actual market price or legal/insurance entitlement.
Description
A gutter pair’s spacing can be reviewed against measurements supplied for the relevant issue.
A gutter pair’s spacing can be reviewed against measurements supplied for the relevant issue.1
This checker evaluates known observations against explicit caller bands without establishing whether two stamps originated together.
When to use Gutter Pair Separator Integrity Checker
Use this tool when you need to review known observations against explicit inclusive bands. Prepare independently verified observations, reference edition/context, and matching units or currency basis.
How to use Gutter Pair Separator Integrity Checker and understand its results
- Prepare independently verified observations, reference edition/context, and matching units or currency basis.
- Enter observedGutterIntegrity, callerGutterIntegrityLower, callerGutterIntegrityUpper, knownGutterIntegrityFlags, following the field table and calculation rules below, then run the tool.
- Read signedKnownMargins, knownReviewIndices, unknownIndices. For result objects, inspect the nested output fields below, including any missing evidence or selected indices.
- Correct any input issues and run again. Before using a successful result, review its units, signs, evidence coverage, and stated model or reference assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| observedGutterIntegrity | Observed gutter integrity | list of number | Required |
| callerGutterIntegrityLower | Caller gutter integrity lower | list of number | Required |
| callerGutterIntegrityUpper | Caller gutter integrity upper | list of number | Required |
| knownGutterIntegrityFlags | Known gutter integrity flags; binary 1 means assessed and 0 means unknown. | list of number | Required |
Enter nonempty aligned observed values, caller lower/upper bounds, and binary known flags. Require lower≤upper for every row, even an unknown one. For a known value return min(value−lower,upper−value): positive inside, zero on a boundary, and negative outside. Only known values strictly outside the inclusive band enter knownReviewIndices. Unknown rows receive a zero placeholder and their separate unknownIndices, so an unknown zero margin is not passing evidence.
margin_i=known_i?min(observed_i−lower_i,upper_i−observed_i):0 Read these symbols with the field meanings and branch or reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| signedKnownMargins | Minimum signed distance to the two inclusive bounds for known observations; zero placeholder for unknown observations. | list of number |
| knownReviewIndices | Zero-based input positions that are known and strictly outside the inclusive reference band. | list of number |
| unknownIndices | Zero-based input positions without a known observation; inspect before interpreting zero placeholders. | list of number |
{
"input": {
"observedGutterIntegrity": [
2,
5
],
"callerGutterIntegrityLower": [
1,
1
],
"callerGutterIntegrityUpper": [
3,
4
],
"knownGutterIntegrityFlags": [
1,
0
]
},
"output": {
"signedKnownMargins": [
1,
0
],
"knownReviewIndices": [],
"unknownIndices": [
1
]
}
}Limitations and assumptions
The observation method, units, and appropriate bounds come from the supplied records. Unknown observations remain unassessed, and numeric band agreement does not authenticate an item or establish a certified grade.
Missing required fields, unknown fields, wrong types, and violated calculation rules return input issues. Numeric values must be finite; nonfinite numeric outputs are rejected. Arrays must be dense, with no missing cells. Numeric lists allow at most 10000 entries, subject to smaller tool-specific bounds above.
Alternative or Complementary methods
For a related task, use Imprint Block Presence Bottom Margin Checker: An imprint block includes printed marginal information that must be observed relative to an expected format. This checker compares supplied evidence requirements and returns compatible and fully witnessed classes separately. For a complementary step, use Stock Sheet Pocket Count Capacity Planner: A stock-sheet pocket can hold stamps only when their height fits and their widths plus gaps fit its usable span. This planner computes capacities for supplied pocket widths using one orientation.
References
-
Gutter Pair Separator Integrity Checker — tool.io
Similar or alternative tools
- Imprint Block Presence Bottom Margin Checker
An imprint block includes printed marginal information that must be observed relative to an expected format. This checker compares supplied evidence requirements and returns compatible and fully witnessed classes separately.
- Stock Sheet Pocket Count Capacity Planner
A stock-sheet pocket can hold stamps only when their height fits and their widths plus gaps fit its usable span. This planner computes capacities for supplied pocket widths using one orientation.