Deterministic per-channel Storage Program name. One anchor per channelId; a redo of the same channel reuses the slot (the SP's mode: "owner" ACL guarantees only the original signer can overwrite).
mode: "owner"
Per-session channelId (matches ChannelTranscript.channelId).
channelId
ChannelTranscript.channelId
The SR-2 program name used by anchorEncryptedTranscript.
anchorEncryptedTranscript
Deterministic per-channel Storage Program name. One anchor per channelId; a redo of the same channel reuses the slot (the SP's
mode: "owner"ACL guarantees only the original signer can overwrite).