RFC 3161 verification: OK
Authority: http://timestamp.digicert.com
Signed time: 2026-11-11T22:16:18+00:00
Manifest SHA-256: 0a9feacaea1f935ee1daa2e80b50d2692ce704e85d0046497f8ae8c3634b7fc0

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 - 0a 9f ea ca ea 1f 93 5e-e1 da a2 e8 0b 50 d2 69   .......^.....P.i
    0010 - 2c e7 04 e8 5d 00 46 49-7f 8a e8 c3 63 4b 7f c0   ,...].FI....cK..
Serial number: 0x43AD8FFCAD0AAD41E9F29609A80CFE90
Time stamp: Nov 11 22:16:18 2026 GMT
Accuracy: unspecified
Ordering: no
Nonce: 0xE627668B6BB765FB
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.