RFC 3161 verification: OK
Authority: http://timestamp.digicert.com
Signed time: 2026-11-07T13:08:22+00:00
Manifest SHA-256: 7c9f8dc844df1d0dd62ddf3ef4c67ac49a2508983050bd01ce6b98c047b434b4

Status info:
Status: Granted.
Status description: unspecified
Failure info: unspecified

TST info:
Version: 1
Policy OID: 2.16.840.1.114412.7.1
Hash Algorithm: sha256
Message data:
    0000 - 7c 9f 8d c8 44 df 1d 0d-d6 2d df 3e f4 c6 7a c4   |...D....-.>..z.
    0010 - 9a 25 08 98 30 50 bd 01-ce 6b 98 c0 47 b4 34 b4   .%..0P...k..G.4.
Serial number: 0xCE339A141183ED72CA672975E6922E27
Time stamp: Nov  7 13:08:22 2026 GMT
Accuracy: unspecified
Ordering: no
Nonce: 0x32B9AC8AD24876FD
TSA: unspecified
Extensions:

Reproduce with OpenSSL:
openssl ts -verify -data manifest.json -in response.tsr -CAfile authority.pem -untrusted chain.pem

Verify authority.pem against the DigiCert Trusted Root G4 published certificate.
This proves existence no later than the signed time, not authorship, accuracy or original publication date.