slip-0019: Update PSBT section.

slip-0019.md

@@ -144,23 +144,19 @@ Each input which is registered to take part in a CoinJoin transaction should be
 
 A proof of ownership commits to a particular scriptPubKey, which means that the proof is replayable for UTXOs with the same address. Nevertheless, freshness of such a proof is guaranteed if a nonce (such as the *psbtId*) is included in the *commitmentData*.
 
-## PSBT (BIP 174) extension
+## PSBT extension
 
-The following new global field type is added to the BIP-0174 specification:
+This section proposes additional fields for [BIP-0174](https://github.com/bitcoin/bips/blob/master/bip-0174.mediawiki) PSBTv0 and [BIP-0370](https://github.com/bitcoin/bips/blob/master/bip-0370.mediawiki) PSBTv2 that allow for SLIP-0019 proofs of ownership to be included in a PSBT of any version.
 
-* Type: PSBT identifier PSBT_GLOBAL_PSBT_ID = 0x0A
-  * Key: None. The key must only contain the 1 byte type.
-    * `{0x02}`
-  * Value: A globally unique PSBT identifier. This value should be used as the *commitmentData* in the *proofFooter*.
-    * `{psbtId}`
+The following new global type is defined:
+Name | `<keytype>` | `<keydata>` | `<keydata>` Description | `<valuedata>` | `<valuedata>` Description | Versions Requiring Inclusion | Versions Requiring Exclusion | Versions Allowing Inclusion
+-----|-------------|-------------|-------------------------|---------------|---------------------------|------------------------------|------------------------------|----------------------------
+Proof-of-ownership commitment data | `PSBT_GLOBAL_OWNERSHIP_COMMITMENT = 0x07` | None | No key data | `<bytes commitmentData>` | The value used as the *commitmentData* in each input's proof-of-ownership. | | | 0, 2
 
-The following new per-input field type is added to the BIP-0174 specification:
-
-* Type: Proof of ownership PSBT_IN_PROOF_OF_OWNERSHIP = 0x0A
-  * Key: None. The key must only contain the 1 byte type.
-    * `{0x0A}`
-  * Value: The *proofOfOwnership* as defined above.
-    * `{proofOfOwnership}`
+The following new per-input type is defined:
+Name | `<keytype>` | `<keydata>` | `<keydata>` Description | `<valuedata>` | `<valuedata>` Description | Versions Requiring Inclusion | Versions Requiring Exclusion | Versions Allowing Inclusion
+-----|-------------|-------------|-------------------------|---------------|---------------------------|------------------------------|------------------------------|----------------------------
+Proof-of-ownership | `PSBT_IN_OWNERSHIP_PROOF = 0x19` | None | No key data | `<bytes proofOfOwnership>` | A *proofOfOwnership* for this input, as defined above, allowing a wallet to determine whether it is able to spend this input or not. | | | 0, 2
 
 ## Implementation considerations