Before proceeding make sure you have created the necessary *gdm85/wheezy*, *gdm85/gitian-host* and *gdm85/gitian-host-vms* images, see [these instructions](../gitian-host/README.md).
Afterwards you can create the *gdm85/gitian-bitcoin-host* image by running [scripts/create-gitian-bitcoin-host.sh](../scripts/create-gitian-bitcoin-host.sh).
You can submit the source lists for other versions as a patch or pull request, see directory [input-sources/](input-sources/) for currently available versions.
[build-bitcoin.sh](build-bitcoin.sh) is a script that will download & build all the dependencies and then bitcoin itself, for both i386 and amd64 Linux architectures.
Once you have completed the build of bitcoin, you will be ready to perform the signing; before doing that you should verify that signatures are matching with those of [other developers](https://github.com/bitcoin/gitian.sigs) by peeking inside *~/gitian.sigs* of the running container.
Only the out_manifest signatures do matter for this purpose.
If you have the private key in the container (also displayed by `gpg -K`), then you can use the [sign.sh](sign.sh) script that is already provided, otherwise
If everything went well, you can fork the [gitian sigs repo](https://github.com/bitcoin/gitian.sigs), commit your signatures and submit a pull request for inclusion.