diff --git a/docs/src/architecture/08_concepts/catalyst_voting/transaction.md b/docs/src/architecture/08_concepts/catalyst_voting/transaction.md
index 3136742d09..c8626c3b26 100644
--- a/docs/src/architecture/08_concepts/catalyst_voting/transaction.md
+++ b/docs/src/architecture/08_concepts/catalyst_voting/transaction.md
@@ -121,25 +121,14 @@ Expected witness (includes signature)
 ### v2
 
 <!-- markdownlint-disable max-one-sentence-per-line code-block-style -->
-??? note "V2 vote transaction definition: `tx_v1.abnf`"
+??? note "V2 vote transaction definition: `tx_v2.cddl`"
 
     ```CDDL
     {{ include_file('src/architecture/08_concepts/catalyst_voting/tx_v2.cddl', indent=4) }}
     ```
 <!-- markdownlint-enable max-one-sentence-per-line code-block-style -->
 
-`event_info` - a set of different identifiers which is uniquely define a particular voting event.
-
-Vote info:
-
-  * `brand_id` - a unique identifier which represents a "brand" who is running the voting,
-    e.g. Catalyst, Midnight.
-  * `campaign_id` - a unique identifier which defines a "campaign" of voting,
-    e.g. "treasury campaign".
-  * `event_id` - a unique identifier which defines an event of voting,
-    e.g. "Catalyst Fund 1", "Catalyst Fund 2".
-  * `category_id` - a unique identifier which defines a voting category as a collection of proposals,
-    e.g. "Development & Infrastructure", "Products & Integrations".
+`event` - a set of different identifiers which is uniquely define a particular voting event.
 
 Vote:
 
@@ -172,7 +161,7 @@ As mentioned earlier, the content type of the [COSE] signature payload is `appli
 In particular it must be a [CBOR] encoded [BLAKE2b-256] hash bytes:
 
 ```CDDL
-payload = #6.32782(bytes .size 32)
+{{ include_file('src/architecture/08_concepts/catalyst_voting/tx_v2_cose_payload.cddl') }}
 ```
 
 ## Rationale
diff --git a/docs/src/architecture/08_concepts/catalyst_voting/tx_v2.cddl b/docs/src/architecture/08_concepts/catalyst_voting/tx_v2.cddl
index 65c459ab89..2e472a7254 100644
--- a/docs/src/architecture/08_concepts/catalyst_voting/tx_v2.cddl
+++ b/docs/src/architecture/08_concepts/catalyst_voting/tx_v2.cddl
@@ -4,26 +4,23 @@ vote_tx = [
 ]
 
 vote_tx_body = [
-    event_info,
+    vote_type: UUID ; e.g. Public or Private vote
+    event,
     votes,
     voters_data: encoded_cbor
 ]
 
-event_info = [+ UUID]
-vote_info = {
-    brand_id: UUID, ; e.g. Midnight, Catalyst etc.
-    campaign_id: UUID, ; e.g. treasury campaign
-    event_id: UUID, ; e.g. Fund 1, Fund 2 etc.
-    category_id: UUID,
-    ; vote_type: UUID, ; e.g. Public or Private vote
-}
+event = { * event_key => any }
+event_key = int / tstr
 
 votes = [+ vote]
 vote = [
-    choice: encoded-cbor,
+    choices: encoded-cbor,
     proof: encoded-cbor / null,
-    prop_id: UUID / null,
+    prop_id: encoded-cbor / null,
 ]
+choices = [+ choice]
+choice = encoded-cbor
 
 UUID = #6.37(bytes) ; UUID type
 signature = #6.98(COSE_Sign) ; COSE signature
diff --git a/docs/src/architecture/08_concepts/catalyst_voting/tx_v2_cose_payload.cddl b/docs/src/architecture/08_concepts/catalyst_voting/tx_v2_cose_payload.cddl
new file mode 100644
index 0000000000..01491ef25d
--- /dev/null
+++ b/docs/src/architecture/08_concepts/catalyst_voting/tx_v2_cose_payload.cddl
@@ -0,0 +1,2 @@
+cose_payload = Blake2b-256
+Blake2b-256 = #6.32782(bytes .size 32) ; Blake2b-256 hash bytes
\ No newline at end of file