Please follow the instructions in the "How are vulnerabilities and exploits handled?" section in the FAQ.

All releases of org.json:json published to Maven Central are signed with PGP. The fingerprint, keyserver location, and verification procedure below let you confirm that the artifacts you've downloaded were produced by this project and have not been modified in transit.

The full 40-character fingerprint above is the canonical identifier for the key. Always pin or compare against the full fingerprint rather than the long or short key ID.

gpg --keyserver hkps://keyserver.ubuntu.com \
    --recv-keys FB35C8D02B4724DADA23DE0AFD116C1969FCCFF3

After importing, confirm the fingerprint matches what's published here:

gpg --fingerprint FB35C8D02B4724DADA23DE0AFD116C1969FCCFF3

Download both the artifact and its detached signature from Maven Central. For example, for version 20251224:

curl -O https://repo1.maven.org/maven2/org/json/json/20251224/json-20251224.jar
curl -O https://repo1.maven.org/maven2/org/json/json/20251224/json-20251224.jar.asc
gpg --verify json-20251224.jar.asc json-20251224.jar

A successful verification will report Good signature from ... and display the same fingerprint shown above. If GPG reports BAD signature, a mismatched fingerprint, or No public key, do not use the artifact and please open an issue.

The same procedure applies to the .pom and any other signed sidecars in the release directory; substitute the filename you want to verify.

If you are using Gradle's dependency verification feature, add an entry like the following to gradle/verification-metadata.xml:

<trusted-key id="FB35C8D02B4724DADA23DE0AFD116C1969FCCFF3" group="org.json" name="json"/>

Gradle also accepts the long key ID (FD116C1969FCCFF3), but pinning the full fingerprint is recommended.

If the signing key is ever rotated or revoked, this document will be updated in the master branch with the new fingerprint, and the change will be visible in the file's commit history. Always check this file directly in the repository for the current authoritative value before trusting any third-party copy of the fingerprint.