[shardy@master-1 images]$ cat rhcos-43.81.201911081536.0-openstack.x86_64.qcow2/rhcos-43.81.201911081536.0-openstack.x86_64.qcow2.headers
HTTP/1.1 302 Moved Temporarily
Server: nginx/1.12.1
Date: Wed, 13 Nov 2019 11:22:40 GMT
Content-Type: text/html
Content-Length: 161
Location: https://art-rhcos-ci.s3.amazonaws.com/releases/rhcos-4.3/43.81.201911081536.0/x86_64/rhcos-43.81.201911081536.0-openstack.x86_64.qcow2.gz
Set-Cookie: e864b3c9d0a263df2fa2591326969fb0=8024b5da8fc3dac464cbe5206ffc5dd0; path=/; HttpOnly; Secure

HTTP/1.1 200 OK
x-amz-id-2: Qv/bBEybAH4vDP3b+IrljRjLjO15kHx76LxGemIFSPFSHbgsL/OvBRLKhJ98kHV5qkfflOdQ0Ak=
x-amz-request-id: F630E4E75EFFC7C8
Date: Wed, 13 Nov 2019 11:22:41 GMT
Last-Modified: Fri, 08 Nov 2019 18:22:54 GMT
ETag: "9e9b25cd0b6a186f8063fc5549693b6c-92"
Cache-Control: max-age=31536000
Accept-Ranges: bytes
Content-Type: binary/octet-stream
Content-Length: 770073664
Server: AmazonS3

[shardy@master-1 images]$ cat rhcos-43.81.20191028.2-openstack.x86_64.qcow2/rhcos-43.81.20191028.2-openstack.x86_64.qcow2.headers
HTTP/1.1 302 Moved Temporarily
Server: nginx/1.12.1
Date: Wed, 30 Oct 2019 10:10:48 GMT
Content-Type: text/html
Content-Length: 161
Location: https://art-rhcos-ci.s3.amazonaws.com/releases/rhcos-4.3/43.81.20191028.2/x86_64/rhcos-43.81.20191028.2-openstack.x86_64.qcow2
Set-Cookie: e864b3c9d0a263df2fa2591326969fb0=790815f71adb036dbfc3083ff899a23f; path=/; HttpOnly; Secure

HTTP/1.1 200 OK
x-amz-id-2: pRstxrGveHbfFPJWSv5qdGeVS1UiQiDUTl+FC+tozRS5Hfrnt8pVlTfCQ0PWhnni+MB2bKoLX4k=
x-amz-request-id: 5FD3E48E2BE32F64
Date: Wed, 30 Oct 2019 10:10:51 GMT
Last-Modified: Mon, 28 Oct 2019 20:31:16 GMT
ETag: "335ebf864d1513dbd85ec1aa60c5d44e-87"
Cache-Control: max-age=31536000
Content-Disposition: inline; filename=rhcos-43.81.20191028.2-openstack.x86_64.qcow2
Content-Encoding: gzip
Accept-Ranges: bytes
Content-Type: binary/octet-stream
Content-Length: 726018106
Server: AmazonS3

[shardy@master-1 images]$ ^C
[shardy@master-1 images]$ sed -n -e 's/.*filename=\([^\r]\+\).*/\1/p' rhcos-ootpa-latest.qcow2.headers
[shardy@master-1 images]$ # empty :(
[shardy@master-1 images]$ sed -n -e 's/.*filename=\([^\r]\+\).*/\1/p' rhcos-43.81.20191028.2-openstack.x86_64.qcow2/rhcos-43.81.20191028.2-openstack.x86_64.qcow2.headers
rhcos-43.81.20191028.2-openstack.x86_64.qcow2