Coil Join Seam Detection Flag Checker

Audit independently observed coil-join seam evidence against reference tolerances. 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 coil join seam observation may be relevant only under the applicable issue and production context.

A coil join seam observation may be relevant only under the applicable issue and production context.^[1]

This checker compares known measurements with supplied bands without proving that a join is original.

When to use Coil Join Seam Detection Flag 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 Coil Join Seam Detection Flag Checker and understand its results

Prepare independently verified observations, reference edition/context, and matching units or currency basis.
Enter observedSeamEvidence, callerSeamEvidenceLower, callerSeamEvidenceUpper, knownSeamEvidenceFlags, 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
observedSeamEvidence	Observed seam evidence	list of number	Required
callerSeamEvidenceLower	Caller seam evidence lower	list of number	Required
callerSeamEvidenceUpper	Caller seam evidence upper	list of number	Required
knownSeamEvidenceFlags	Known seam evidence 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

json

{
  "input": {
    "observedSeamEvidence": [
      2,
      5
    ],
    "callerSeamEvidenceLower": [
      1,
      1
    ],
    "callerSeamEvidenceUpper": [
      3,
      4
    ],
    "knownSeamEvidenceFlags": [
      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 Coil Waste Line Guide Stripe Identifier: A coil guide stripe can have an issue-specific identification role when independently observed. This identifier returns caller evidence classes that remain compatible and fully witnessed, without recognizing a stripe from a scan. For a complementary step, use Gutter Pair Separator Integrity Checker: A gutter pair’s spacing can be reviewed against measurements supplied for the relevant issue. This checker evaluates known observations against explicit caller bands without establishing whether two stamps originated together.

References

Coil Join Seam Detection Flag Checker — tool.io

Similar or alternative tools

Coil Waste Line Guide Stripe Identifier
A coil guide stripe can have an issue-specific identification role when independently observed. This identifier returns caller evidence classes that remain compatible and fully witnessed, without recognizing a stripe from a scan.
Gutter Pair Separator Integrity Checker
A gutter pair’s spacing can be reviewed against measurements supplied for the relevant issue. This checker evaluates known observations against explicit caller bands without establishing whether two stamps originated together.