RFC 3161 verification: OK
Authority: http://timestamp.digicert.com
Signed time: 2026-11-11T17:06:52+00:00
Manifest SHA-256: 7f38710b4f126b9518b046f8a3b1934a5bd862728b2dcfa2214037c9b2e4da1e

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 - 7f 38 71 0b 4f 12 6b 95-18 b0 46 f8 a3 b1 93 4a   .8q.O.k...F....J
    0010 - 5b d8 62 72 8b 2d cf a2-21 40 37 c9 b2 e4 da 1e   [.br.-..!@7.....
Serial number: 0x3B9915064CC7064F51863E80A5736A6D
Time stamp: Nov 11 17:06:52 2026 GMT
Accuracy: unspecified
Ordering: no
Nonce: 0xE61C1397F1325181
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.