Jpylyzer output for High Throughput JPEG 2000 codestream downloaded from https://chafey.github.io/openjphjs/test/browser/index.html

ht2jk-jpylyzer.xnl

<?xml version='1.0' encoding='UTF-8'?>
<jpylyzer xmlns="http://openpreservation.org/ns/jpylyzer/v2/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://openpreservation.org/ns/jpylyzer/v2/ http://jpylyzer.openpreservation.org/jpylyzer-v-2-0.xsd">
<toolInfo>
    <toolName>jpylyzer</toolName>
    <toolVersion>2.0.0</toolVersion>
</toolInfo>
<file>
    <fileInfo>
        <fileName>6e3Gf8Mu</fileName>
        <filePath>/home/johan/test/6e3Gf8Mu</filePath>
        <fileSizeInBytes>185182</fileSizeInBytes>
        <fileLastModified>2022-08-03T20:46:37.017838</fileLastModified>
    </fileInfo>
    <statusInfo>
        <success>True</success>
    </statusInfo>
    <isValid format="j2c">False</isValid>
    <tests>
        <siz>
            <rsizIsValid>False</rsizIsValid>
        </siz>
    </tests>
    <properties>
        <siz>
            <lsiz>41</lsiz>
            <rsiz>16384</rsiz>
            <xsiz>512</xsiz>
            <ysiz>512</ysiz>
            <xOsiz>0</xOsiz>
            <yOsiz>0</yOsiz>
            <xTsiz>512</xTsiz>
            <yTsiz>512</yTsiz>
            <xTOsiz>0</xTOsiz>
            <yTOsiz>0</yTOsiz>
            <numberOfTiles>1</numberOfTiles>
            <csiz>1</csiz>
            <ssizSign>signed</ssizSign>
            <ssizDepth>16</ssizDepth>
            <xRsiz>1</xRsiz>
            <yRsiz>1</yRsiz>
        </siz>
        <cod>
            <lcod>12</lcod>
            <precincts>default</precincts>
            <sop>no</sop>
            <eph>no</eph>
            <order>RPCL</order>
            <layers>1</layers>
            <multipleComponentTransformation>no</multipleComponentTransformation>
            <levels>5</levels>
            <codeBlockWidth>64</codeBlockWidth>
            <codeBlockHeight>64</codeBlockHeight>
            <codingBypass>no</codingBypass>
            <resetOnBoundaries>no</resetOnBoundaries>
            <termOnEachPass>no</termOnEachPass>
            <vertCausalContext>no</vertCausalContext>
            <predTermination>no</predTermination>
            <segmentationSymbols>no</segmentationSymbols>
            <transformation>5-3 reversible</transformation>
            <precinctSizeX>32768</precinctSizeX>
            <precinctSizeY>32768</precinctSizeY>
            <precinctSizeX>32768</precinctSizeX>
            <precinctSizeY>32768</precinctSizeY>
            <precinctSizeX>32768</precinctSizeX>
            <precinctSizeY>32768</precinctSizeY>
            <precinctSizeX>32768</precinctSizeX>
            <precinctSizeY>32768</precinctSizeY>
            <precinctSizeX>32768</precinctSizeX>
            <precinctSizeY>32768</precinctSizeY>
            <precinctSizeX>32768</precinctSizeX>
            <precinctSizeY>32768</precinctSizeY>
        </cod>
        <qcd>
            <lqcd>19</lqcd>
            <qStyle>no quantization</qStyle>
            <guardBits>1</guardBits>
            <epsilon>18</epsilon>
            <epsilon>19</epsilon>
            <epsilon>19</epsilon>
            <epsilon>20</epsilon>
            <epsilon>19</epsilon>
        </qcd>
        <com>
            <lcom>22</lcom>
            <rcom>ISO/IEC 8859-15 (Latin)</rcom>
            <comment>OpenJPH Ver 0.6.3.</comment>
        </com>
        <tileParts>
            <tilePart>
                <sot>
                    <lsot>10</lsot>
                    <isot>0</isot>
                    <psot>185066</psot>
                    <tpsot>0</tpsot>
                    <tnsot>1</tnsot>
                </sot>
            </tilePart>
        </tileParts>
    </properties>
</file>
</jpylyzer>

Post-script: this is probably just a "regular" JPEG 2000 codestream, as the web demo only does decoding!