diff --git a/app/package-lock.json b/app/package-lock.json
index 3f04887..cb78ac2 100644
--- a/app/package-lock.json
+++ b/app/package-lock.json
@@ -13,13 +13,13 @@
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         "@huggingface/transformers": "4.3.0",
         "@noble/hashes": "^1.8.0",
-        "@parity/product-sdk-host": "0.19.1",
-        "@parity/product-sdk-signer": "0.14.4",
+        "@parity/product-sdk-host": "0.28.0",
+        "@parity/product-sdk-signer": "0.17.3",
         "@phosphor-icons/core": "^2.1.1",
         "@polkadot/util": "^13.5.4",
         "@polkadot/util-crypto": "^13.5.4",
         "multiformats": "^13.3.7",
-        "polkadot-api": "~2.2.1",
+        "polkadot-api": "3.2.1",
         "qrcode": "^1.5.4",
         "viem": "^2.56.8"
       },
@@ -1157,13 +1157,13 @@
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-      "resolved": "https://registry.npmjs.org/@parity/product-sdk-address/-/product-sdk-address-0.2.0.tgz",
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+      "version": "0.3.1",
+      "resolved": "https://registry.npmjs.org/@parity/product-sdk-address/-/product-sdk-address-0.3.1.tgz",
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-        "@polkadot-api/substrate-bindings": "^0.20.3"
+        "@polkadot-api/substrate-bindings": "^0.21.2"
       }
     },
     "node_modules/@parity/product-sdk-address/node_modules/@noble/hashes": {
@@ -1197,66 +1197,92 @@
       "license": "Apache-2.0"
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-      "resolved": "https://registry.npmjs.org/@parity/product-sdk-host/-/product-sdk-host-0.19.1.tgz",
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+      "resolved": "https://registry.npmjs.org/@parity/product-sdk-host/-/product-sdk-host-0.28.0.tgz",
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-        "@parity/product-sdk-logger": "0.1.1",
+        "@parity/product-sdk-logger": "0.1.2",
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-        "@parity/truapi": "^0.13.1",
+        "@parity/truapi": "^0.25.0",
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-        "@polkadot-api/substrate-bindings": "^0.20.3",
+        "@polkadot-api/signers-common": "^0.4.0",
+        "@polkadot-api/substrate-bindings": "^0.21.2",
+        "@polkadot-api/tx-creator": "^0.2.0",
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-        "polkadot-api": "^2.1.6"
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-      "resolved": "https://registry.npmjs.org/@parity/product-sdk-keys/-/product-sdk-keys-0.3.24.tgz",
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-        "@parity/product-sdk-local-storage": "0.3.9",
+        "@parity/product-sdk-local-storage": "0.3.19",
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         "@scure/sr25519": "^2.2.0",
-        "polkadot-api": "^2.1.6",
-        "scale-ts": "^1.6.1"
+        "polkadot-api": "^3.2.1"
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-      "resolved": "https://registry.npmjs.org/@parity/product-sdk-local-storage/-/product-sdk-local-storage-0.3.9.tgz",
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+      "resolved": "https://registry.npmjs.org/@parity/product-sdk-local-storage/-/product-sdk-local-storage-0.3.19.tgz",
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-        "@parity/product-sdk-logger": "0.1.1"
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+        "@parity/product-sdk-logger": "0.1.2"
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-      "resolved": "https://registry.npmjs.org/@parity/product-sdk-logger/-/product-sdk-logger-0.1.1.tgz",
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+      "resolved": "https://registry.npmjs.org/@parity/product-sdk-logger/-/product-sdk-logger-0.1.2.tgz",
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+      "resolved": "https://registry.npmjs.org/@parity/product-sdk-signer/-/product-sdk-signer-0.17.3.tgz",
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       "license": "Apache-2.0",
       "dependencies": {
-        "@parity/product-sdk-address": "0.2.0",
+        "@parity/product-sdk-address": "0.3.1",
         "@parity/product-sdk-errors": "0.2.0",
-        "@parity/product-sdk-host": "0.19.1",
-        "@parity/product-sdk-keys": "0.3.24",
-        "@parity/product-sdk-logger": "0.1.1",
+        "@parity/product-sdk-host": "0.28.0",
+        "@parity/product-sdk-keys": "0.5.3",
+        "@parity/product-sdk-logger": "0.1.2",
         "@parity/result": "0.2.0",
-        "polkadot-api": "^2.1.6"
+        "@polkadot-api/signers-common": "^0.4.0",
+        "polkadot-api": "^3.2.1"
+      }
+    },
+    "node_modules/@parity/product-sdk-utils": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/@parity/product-sdk-utils/-/product-sdk-utils-0.2.1.tgz",
+      "integrity": "sha512-s8IzXXy+XhxxSHeXA7ABEJTvGgn3JwbdBmh2IY2gPja9ZgqRsDLYV0u0/Jr7DLOtXFRm2KNKokF7UdfWOS1hmw==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@noble/hashes": "^2.2.0",
+        "@parity/product-sdk-logger": "0.1.2"
+      }
+    },
+    "node_modules/@parity/product-sdk-utils/node_modules/@noble/hashes": {
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-2.4.0.tgz",
+      "integrity": "sha512-X5XaVWZIBCT7HHZGm5I7ZQXDwLG+bGXuSrMQAW+7Zvl87h1kmc1ZB1VSRJcpUfoUrGQp4Fkoxm5kZ+Ms+aW+eA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 20.19.0"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
       }
     },
     "node_modules/@parity/result": {
@@ -1266,9 +1292,9 @@
       "license": "Apache-2.0"
     },
     "node_modules/@parity/truapi": {
-      "version": "0.13.1",
-      "resolved": "https://registry.npmjs.org/@parity/truapi/-/truapi-0.13.1.tgz",
-      "integrity": "sha512-6gkfHskN8I7H5DwB7j96wRusVx7xuGzu1YGWLBLPCD1RtBSnkPaQq/8Ac3MwudNz8kYqKZ5kZao3EkJ4PN4nCg==",
+      "version": "0.25.0",
+      "resolved": "https://registry.npmjs.org/@parity/truapi/-/truapi-0.25.0.tgz",
+      "integrity": "sha512-00G5cVoIXLAVZ4o1x/anCppJt5HFU0aJn8T5jT6TzFJxrjnPfVQWgaaxznx0Z/nsnrK3KIV18DjJhtCkZToX6Q==",
       "license": "MIT",
       "dependencies": {
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@@ -1295,33 +1321,33 @@
       "license": "MIT"
     },
     "node_modules/@polkadot-api/cli": {
-      "version": "0.21.10",
-      "resolved": "https://registry.npmjs.org/@polkadot-api/cli/-/cli-0.21.10.tgz",
-      "integrity": "sha512-i2Z1Xv6BJOAhdzRKfTGao4WMo+Zv2UsHiKz9CDcaYL290ueYM6T9k32l043opBDQT1EdcUQH7I7hDiwP125neA==",
+      "version": "0.22.3",
+      "resolved": "https://registry.npmjs.org/@polkadot-api/cli/-/cli-0.22.3.tgz",
+      "integrity": "sha512-FmOd8eAiWzI2MjY+FegE2tSd/4vyc1+si6hmFHshVKbXQPnLRDKvg90Fbe5P5zHeA1omSJCtC1u7nmTIHzRvLA==",
       "license": "MIT",
       "dependencies": {
         "@commander-js/extra-typings": "^15.0.0",
-        "@polkadot-api/codegen": "0.22.5",
-        "@polkadot-api/ink-contracts": "0.6.3",
+        "@polkadot-api/codegen": "0.23.2",
+        "@polkadot-api/ink-contracts": "0.7.2",
         "@polkadot-api/json-rpc-provider": "0.2.0",
-        "@polkadot-api/known-chains": "0.12.1",
-        "@polkadot-api/metadata-compatibility": "0.6.3",
-        "@polkadot-api/observable-client": "0.18.8",
-        "@polkadot-api/sm-provider": "0.3.8",
-        "@polkadot-api/smoldot": "0.4.6",
-        "@polkadot-api/substrate-bindings": "0.20.3",
+        "@polkadot-api/known-chains": "0.12.4",
+        "@polkadot-api/metadata-compatibility": "0.7.2",
+        "@polkadot-api/observable-client": "0.19.3",
+        "@polkadot-api/sm-provider": "0.3.9",
+        "@polkadot-api/smoldot": "0.4.8",
+        "@polkadot-api/substrate-bindings": "0.21.2",
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         "@polkadot-api/utils": "0.4.0",
         "@polkadot-api/wasm-executor": "^0.2.3",
-        "@polkadot-api/ws-middleware": "0.3.6",
+        "@polkadot-api/ws-middleware": "0.4.2",
         "@polkadot-api/ws-provider": "0.9.1",
-        "@types/node": "^25.9.4",
+        "@types/node": "^26.6.3",
         "commander": "^15.0.0",
-        "execa": "^9.6.1",
+        "execa": "^10.0.1",
         "fs.promises.exists": "^1.1.4",
         "ora": "^9.4.1",
         "read-pkg": "^10.1.0",
-        "rollup": "^4.62.2",
+        "rollup": "^4.63.6",
         "rollup-plugin-esbuild": "^6.2.1",
         "rxjs": "^7.8.2",
         "tsc-prog": "^2.3.0",
@@ -1333,15 +1359,6 @@
         "polkadot-api": "dist/main/src/main.js"
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-      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.9.8.tgz",
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-      "license": "MIT",
-      "dependencies": {
-        "undici-types": ">=7.24.0 <7.24.7"
-      }
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     "node_modules/@polkadot-api/cli/node_modules/typescript": {
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       "resolved": "https://registry.npmjs.org/typescript/-/typescript-6.0.3.tgz",
@@ -1355,33 +1372,27 @@
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-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.24.6.tgz",
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-      "license": "MIT"
-    },
     "node_modules/@polkadot-api/codegen": {
-      "version": "0.22.5",
-      "resolved": "https://registry.npmjs.org/@polkadot-api/codegen/-/codegen-0.22.5.tgz",
-      "integrity": "sha512-zwZJAlviI211zhj5i6oXkrr0crrbO3GZjBd2vC9AshY1pRmyiNLV9DZsXw4E6l4JQwdAAyNWtPdnvvB9T3TpKg==",
+      "version": "0.23.2",
+      "resolved": "https://registry.npmjs.org/@polkadot-api/codegen/-/codegen-0.23.2.tgz",
+      "integrity": "sha512-vV7UybrNMCtB79phMBFVWoVaYO8ApVE/5fE5uw7TBUMFTcDZZ3VwVM2qVnNCK/X4jH/FAnMSGoOrdjRVQyeSFA==",
       "license": "MIT",
       "dependencies": {
-        "@polkadot-api/ink-contracts": "0.6.3",
-        "@polkadot-api/metadata-builders": "0.14.3",
-        "@polkadot-api/metadata-compatibility": "0.6.3",
-        "@polkadot-api/substrate-bindings": "0.20.3",
+        "@polkadot-api/ink-contracts": "0.7.2",
+        "@polkadot-api/metadata-builders": "0.15.2",
+        "@polkadot-api/metadata-compatibility": "0.7.2",
+        "@polkadot-api/substrate-bindings": "0.21.2",
         "@polkadot-api/utils": "0.4.0"
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     "node_modules/@polkadot-api/ink-contracts": {
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-      "resolved": "https://registry.npmjs.org/@polkadot-api/ink-contracts/-/ink-contracts-0.6.3.tgz",
-      "integrity": "sha512-XqnM1VDzI5L62xgg+f8le2yEoz8QZbUKEfAfPnHMOgBj9tJiyF15FcOJmnLMO/vq3cGixqh18tzJekLG5YTxtA==",
+      "version": "0.7.2",
+      "resolved": "https://registry.npmjs.org/@polkadot-api/ink-contracts/-/ink-contracts-0.7.2.tgz",
+      "integrity": "sha512-ipKLbaboWImnjO0TuqLJNDdzoC0tLUTvJ+XNKW0wWm1OM2cXX8X0nXfAfTGy14PdUkyKjLncoPNoqgbEhmAh/Q==",
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       "dependencies": {
-        "@polkadot-api/metadata-builders": "0.14.3",
-        "@polkadot-api/substrate-bindings": "0.20.3",
+        "@polkadot-api/metadata-builders": "0.15.2",
+        "@polkadot-api/substrate-bindings": "0.21.2",
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@@ -1398,9 +1409,9 @@
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-      "resolved": "https://registry.npmjs.org/@polkadot-api/known-chains/-/known-chains-0.12.1.tgz",
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+      "version": "0.12.4",
+      "resolved": "https://registry.npmjs.org/@polkadot-api/known-chains/-/known-chains-0.12.4.tgz",
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       "license": "MIT"
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     "node_modules/@polkadot-api/logs-provider": {
@@ -1413,44 +1424,44 @@
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+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/@polkadot-api/merkleize-metadata/-/merkleize-metadata-1.3.2.tgz",
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       "dependencies": {
-        "@polkadot-api/metadata-builders": "0.14.3",
-        "@polkadot-api/substrate-bindings": "0.20.3",
+        "@polkadot-api/metadata-builders": "0.15.2",
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       "license": "MIT",
       "dependencies": {
-        "@polkadot-api/substrate-bindings": "0.20.3",
+        "@polkadot-api/substrate-bindings": "0.21.2",
         "@polkadot-api/utils": "0.4.0"
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+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/path-key/-/path-key-4.0.0.tgz",
+      "integrity": "sha512-haREypq7xkM7ErfgIyA0z+Bj4AGKlMSdlQE2jvJo6huWD1EdkKYV+G/T4nq0YEF2vgTT8kqMFKo1uHn950r4SQ==",
       "license": "MIT",
       "engines": {
-        "node": ">=8"
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
       }
     },
     "node_modules/pathe": {
@@ -3963,28 +3940,29 @@
       }
     },
     "node_modules/polkadot-api": {
-      "version": "2.2.2",
-      "resolved": "https://registry.npmjs.org/polkadot-api/-/polkadot-api-2.2.2.tgz",
-      "integrity": "sha512-OpDJ1pZSu6ulukTb8l2T3wyA5jH6uVlR9TEUcf4N4jw3rMS7wJ+AKKtFXNWXWnMBt0z4LnlOJ7OyoN7Osa5zXw==",
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/polkadot-api/-/polkadot-api-3.2.1.tgz",
+      "integrity": "sha512-cumk5MUUH8TnACIvl5jOtQ0Ct/0ttppA+mpsOLwjeoFRezX9C70sTTNe2liJWq2lYfG7mUELiN2CrahTXLfM8w==",
       "license": "MIT",
       "dependencies": {
-        "@polkadot-api/cli": "0.21.10",
-        "@polkadot-api/ink-contracts": "0.6.3",
+        "@polkadot-api/cli": "0.22.3",
+        "@polkadot-api/ink-contracts": "0.7.2",
         "@polkadot-api/json-rpc-provider": "0.2.0",
-        "@polkadot-api/known-chains": "0.12.1",
+        "@polkadot-api/known-chains": "0.12.4",
         "@polkadot-api/logs-provider": "0.2.0",
-        "@polkadot-api/metadata-builders": "0.14.3",
-        "@polkadot-api/metadata-compatibility": "0.6.3",
-        "@polkadot-api/observable-client": "0.18.8",
-        "@polkadot-api/pjs-signer": "0.7.3",
-        "@polkadot-api/polkadot-signer": "0.1.6",
-        "@polkadot-api/signer": "0.3.3",
-        "@polkadot-api/sm-provider": "0.3.8",
-        "@polkadot-api/smoldot": "0.4.6",
-        "@polkadot-api/substrate-bindings": "0.20.3",
+        "@polkadot-api/metadata-builders": "0.15.2",
+        "@polkadot-api/metadata-compatibility": "0.7.2",
+        "@polkadot-api/observable-client": "0.19.3",
+        "@polkadot-api/pjs-signer": "0.8.2",
+        "@polkadot-api/raw-tx-creator": "0.5.0",
+        "@polkadot-api/signers-common": "0.4.0",
+        "@polkadot-api/sm-provider": "0.3.9",
+        "@polkadot-api/smoldot": "0.4.8",
+        "@polkadot-api/substrate-bindings": "0.21.2",
         "@polkadot-api/substrate-client": "0.7.0",
+        "@polkadot-api/tx-creator": "0.2.0",
         "@polkadot-api/utils": "0.4.0",
-        "@polkadot-api/ws-middleware": "0.3.6",
+        "@polkadot-api/ws-middleware": "0.4.2",
         "@polkadot-api/ws-provider": "0.9.1",
         "@rx-state/core": "^0.1.4"
       },
@@ -4100,9 +4078,9 @@
       }
     },
     "node_modules/read-pkg/node_modules/unicorn-magic": {
-      "version": "0.4.0",
-      "resolved": "https://registry.npmjs.org/unicorn-magic/-/unicorn-magic-0.4.0.tgz",
-      "integrity": "sha512-wH590V9VNgYH9g3lH9wWjTrUoKsjLF6sGLjhR4sH1LWpLmCOH0Zf7PukhDA8BiS7KHe4oPNkcTHqYkj7SOGUOw==",
+      "version": "0.4.1",
+      "resolved": "https://registry.npmjs.org/unicorn-magic/-/unicorn-magic-0.4.1.tgz",
+      "integrity": "sha512-lzlXPoVB0Uy/FvTaUgX39RbixYiSKoc3JSoSf01+0c2B6FR3qdYIPN7Qjo/AV7n6sqLCk0509cT3LRj1oSZ1+A==",
       "license": "MIT",
       "engines": {
         "node": ">=20"
@@ -4152,9 +4130,9 @@
       }
     },
     "node_modules/rollup": {
-      "version": "4.63.4",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-4.63.4.tgz",
-      "integrity": "sha512-4U0liVayNIoLp3GFl1FcI8561WepLnZ1rqfraGh7S9B3Ur5F9S283y8Futii7RUU2C/97tOBmBy7nYvhoiOpbQ==",
+      "version": "4.65.1",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-4.65.1.tgz",
+      "integrity": "sha512-HzD4IdphaPMvuAacnL/vtoq5B8FwqewKvxTtqYibWvP6VDyZ+UsTtlw5F8HIOIIpLQAkN2NOP/0sM3puo9xN/A==",
       "license": "MIT",
       "dependencies": {
         "@types/estree": "1.0.9"
@@ -4168,31 +4146,31 @@
       },
       "optionalDependencies": {
         "@napi-rs/lzma-linux-x64-gnu": "1.5.1",
-        "@rollup/rollup-android-arm-eabi": "4.63.4",
-        "@rollup/rollup-android-arm64": "4.63.4",
-        "@rollup/rollup-darwin-arm64": "4.63.4",
-        "@rollup/rollup-darwin-x64": "4.63.4",
-        "@rollup/rollup-freebsd-arm64": "4.63.4",
-        "@rollup/rollup-freebsd-x64": "4.63.4",
-        "@rollup/rollup-linux-arm-gnueabihf": "4.63.4",
-        "@rollup/rollup-linux-arm-musleabihf": "4.63.4",
-        "@rollup/rollup-linux-arm64-gnu": "4.63.4",
-        "@rollup/rollup-linux-arm64-musl": "4.63.4",
-        "@rollup/rollup-linux-loong64-gnu": "4.63.4",
-        "@rollup/rollup-linux-loong64-musl": "4.63.4",
-        "@rollup/rollup-linux-ppc64-gnu": "4.63.4",
-        "@rollup/rollup-linux-ppc64-musl": "4.63.4",
-        "@rollup/rollup-linux-riscv64-gnu": "4.63.4",
-        "@rollup/rollup-linux-riscv64-musl": "4.63.4",
-        "@rollup/rollup-linux-s390x-gnu": "4.63.4",
-        "@rollup/rollup-linux-x64-gnu": "4.63.4",
-        "@rollup/rollup-linux-x64-musl": "4.63.4",
-        "@rollup/rollup-openbsd-x64": "4.63.4",
-        "@rollup/rollup-openharmony-arm64": "4.63.4",
-        "@rollup/rollup-win32-arm64-msvc": "4.63.4",
-        "@rollup/rollup-win32-ia32-msvc": "4.63.4",
-        "@rollup/rollup-win32-x64-gnu": "4.63.4",
-        "@rollup/rollup-win32-x64-msvc": "4.63.4",
+        "@rollup/rollup-android-arm-eabi": "4.65.1",
+        "@rollup/rollup-android-arm64": "4.65.1",
+        "@rollup/rollup-darwin-arm64": "4.65.1",
+        "@rollup/rollup-darwin-x64": "4.65.1",
+        "@rollup/rollup-freebsd-arm64": "4.65.1",
+        "@rollup/rollup-freebsd-x64": "4.65.1",
+        "@rollup/rollup-linux-arm-gnueabihf": "4.65.1",
+        "@rollup/rollup-linux-arm-musleabihf": "4.65.1",
+        "@rollup/rollup-linux-arm64-gnu": "4.65.1",
+        "@rollup/rollup-linux-arm64-musl": "4.65.1",
+        "@rollup/rollup-linux-loong64-gnu": "4.65.1",
+        "@rollup/rollup-linux-loong64-musl": "4.65.1",
+        "@rollup/rollup-linux-ppc64-gnu": "4.65.1",
+        "@rollup/rollup-linux-ppc64-musl": "4.65.1",
+        "@rollup/rollup-linux-riscv64-gnu": "4.65.1",
+        "@rollup/rollup-linux-riscv64-musl": "4.65.1",
+        "@rollup/rollup-linux-s390x-gnu": "4.65.1",
+        "@rollup/rollup-linux-x64-gnu": "4.65.1",
+        "@rollup/rollup-linux-x64-musl": "4.65.1",
+        "@rollup/rollup-openbsd-x64": "4.65.1",
+        "@rollup/rollup-openharmony-arm64": "4.65.1",
+        "@rollup/rollup-win32-arm64-msvc": "4.65.1",
+        "@rollup/rollup-win32-ia32-msvc": "4.65.1",
+        "@rollup/rollup-win32-x64-gnu": "4.65.1",
+        "@rollup/rollup-win32-x64-msvc": "4.65.1",
         "fsevents": "~2.3.2"
       }
     },
@@ -4324,27 +4302,6 @@
         }
       }
     },
-    "node_modules/shebang-command": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
-      "integrity": "sha512-kHxr2zZpYtdmrN1qDjrrX/Z1rR1kG8Dx+gkpK1G4eXmvXswmcE1hTWBWYUzlraYw1/yZp6YuDY77YtvbN0dmDA==",
-      "license": "MIT",
-      "dependencies": {
-        "shebang-regex": "^3.0.0"
-      },
-      "engines": {
-        "node": ">=8"
-      }
-    },
-    "node_modules/shebang-regex": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-3.0.0.tgz",
-      "integrity": "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=8"
-      }
-    },
     "node_modules/signal-exit": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-4.1.0.tgz",
@@ -4358,9 +4315,9 @@
       }
     },
     "node_modules/smoldot": {
-      "version": "3.3.2",
-      "resolved": "https://registry.npmjs.org/smoldot/-/smoldot-3.3.2.tgz",
-      "integrity": "sha512-Zl4h/0gsw8cfTZzuJ7LV7mtR6QjxltwYjMY7MsVw0oXBXrLK8zyOS6DS9Vjsy57pX1vBMg6UVhHxjbH3W905zA==",
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/smoldot/-/smoldot-3.6.0.tgz",
+      "integrity": "sha512-kBN6gKq06qPUEfwFmk9Bn5z8Kkzuuvc6VOjZ81KDu080vY0r9Hdd2OCCAqFFwnSC9T/znnHxpNK27gu6eKf8tg==",
       "license": "GPL-3.0-or-later WITH Classpath-exception-2.0",
       "dependencies": {
         "ws": "^8.8.1"
@@ -4436,9 +4393,9 @@
       }
     },
     "node_modules/string-width": {
-      "version": "8.2.2",
-      "resolved": "https://registry.npmjs.org/string-width/-/string-width-8.2.2.tgz",
-      "integrity": "sha512-GaPUh5gfdrYzqeVNZvUfT23vYYxXzKYidUcnMtJg/3rxRV63EFZy3k6xfKlmfeJD0176lnUV/Usr3XcwSvFzpg==",
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-8.3.0.tgz",
+      "integrity": "sha512-ZbmZM0JCihQN91dWnxoipT2KOEyHqEyfRXUyjuRhW8b/xnqPDoq4gWEVApTVa9db2wN8mmoikgFBbjh71+cGeQ==",
       "license": "MIT",
       "dependencies": {
         "get-east-asian-width": "^1.5.0",
@@ -4744,19 +4701,19 @@
         }
       }
     },
-    "node_modules/which": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
-      "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
-      "license": "ISC",
-      "dependencies": {
-        "isexe": "^2.0.0"
-      },
+    "node_modules/which-command": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/which-command/-/which-command-0.1.0.tgz",
+      "integrity": "sha512-XZyoF5/5hZtXitIwzrU4NKK+Wtbb9aB9CezUEw2Q0wlYK8NUYQxC1rRXgNueYLtBAJwXIb+/tFVk4dozciNJMA==",
+      "license": "MIT",
       "bin": {
-        "node-which": "bin/node-which"
+        "which-command": "cli.js"
       },
       "engines": {
-        "node": ">= 8"
+        "node": ">=22"
+      },
+      "funding": {
+        "url": "https://github.com/sindresorhus/which-command?sponsor=1"
       }
     },
     "node_modules/which-module": {
diff --git a/app/package.json b/app/package.json
index 6148b5e..e6f9c91 100644
--- a/app/package.json
+++ b/app/package.json
@@ -19,13 +19,13 @@
     "@fontsource/space-mono": "^5.3.0",
     "@huggingface/transformers": "4.3.0",
     "@noble/hashes": "^1.8.0",
-    "@parity/product-sdk-host": "0.19.1",
-    "@parity/product-sdk-signer": "0.14.4",
+    "@parity/product-sdk-host": "0.28.0",
+    "@parity/product-sdk-signer": "0.17.3",
     "@phosphor-icons/core": "^2.1.1",
     "@polkadot/util": "^13.5.4",
     "@polkadot/util-crypto": "^13.5.4",
     "multiformats": "^13.3.7",
-    "polkadot-api": "~2.2.1",
+    "polkadot-api": "3.2.1",
     "qrcode": "^1.5.4",
     "viem": "^2.56.8"
   },
diff --git a/app/src/lib/people.ts b/app/src/lib/people.ts
index 73b7a4c..b1478a8 100644
--- a/app/src/lib/people.ts
+++ b/app/src/lib/people.ts
@@ -53,7 +53,7 @@ async function ownerViaPublic(username: string): Promise<string | null> {
 }
 
 async function ownerVia(client: PolkadotClient, username: string): Promise<string | null> {
-  // polkadot-api 2.2: la clave `Vec<u8>` va como Uint8Array y el AccountId vuelve en SS58.
+  // polkadot-api 3: la clave `Vec<u8>` va como Uint8Array y el AccountId vuelve en SS58.
   const q = client.getUnsafeApi().query.Resources.UsernameOwnerOf.getValue(new TextEncoder().encode(username)) as Promise<string | undefined>;
   const r = await withTimeout(q, PEOPLE_QUERY_MS);
   if (r === TIMED_OUT) throw new Error('People chain no respondió');
diff --git a/app/src/lib/registry.ts b/app/src/lib/registry.ts
index 6c9ec2d..5cefe6b 100644
--- a/app/src/lib/registry.ts
+++ b/app/src/lib/registry.ts
@@ -3,7 +3,8 @@
  * `get(huella)` con la runtime API ReviveApi.call. Funciona igual con el
  * provider del host o con un WebSocket público.
  */
-import { Binary, type PolkadotClient, type PolkadotSigner } from 'polkadot-api';
+import { Binary, type PolkadotClient } from 'polkadot-api';
+import type { SignerTxCreator as PolkadotSigner } from 'polkadot-api/tx-creator';
 import { decodeErrorResult, decodeFunctionResult, encodeFunctionData, type Abi } from 'viem';
 import abiJson from './TalkRegistry.abi.json' with { type: 'json' };
 import { REGISTRY_ADDRESS } from './network.ts';
@@ -28,7 +29,7 @@ export interface OnChainSeal {
 export async function readSeal(client: PolkadotClient, receiptHash: string): Promise<OnChainSeal | null> {
   const api = client.getUnsafeApi();
   const data = encodeFunctionData({ abi, functionName: 'get', args: [receiptHash as `0x${string}`] });
-  // `dest` es [u8; 20]: en polkadot-api 2.2 va como texto hex; los Vec<u8> son Uint8Array.
+  // `dest` es [u8; 20]: en polkadot-api 3 va como texto hex; los Vec<u8> son Uint8Array.
   // La api sin descriptors no tipa el resultado.
   const r = (await api.apis.ReviveApi.call(READ_ORIGIN, REGISTRY_ADDRESS, 0n, undefined, undefined, Binary.fromHex(data))) as {
     result?: { success: boolean; value: { flags: number; data: Uint8Array | string } };
@@ -118,7 +119,6 @@ const WEIGHT_CAP = { ref_time: 900_000_000_000n, proof_size: 3_000_000n };
 
 interface TxEvent {
   type: string;
-  found?: boolean;
   ok?: boolean;
   txHash?: string;
   block?: { number: number };
@@ -126,13 +126,14 @@ interface TxEvent {
 }
 
 /** Firma, envía y espera a que el bloque quede finalizado; avisa cuando ya se firmó. */
-function submit(tx: { signSubmitAndWatch(s: PolkadotSigner): { subscribe(o: object): { unsubscribe(): void } } }, signer: PolkadotSigner, onSigned: () => void): Promise<{ block: number; txHash: string }> {
+function submit(tx: { createSubmitAndWatch(s: PolkadotSigner): { subscribe(o: object): { unsubscribe(): void } } }, signer: PolkadotSigner, onSigned: () => void): Promise<{ block: number; txHash: string }> {
   return new Promise((resolve, reject) => {
-    const sub = tx.signSubmitAndWatch(signer).subscribe({
+    // polkadot-api 3: el firmante es un TxCreator; eventos created → broadcasted → inBestBlock → finalized
+    const sub = tx.createSubmitAndWatch(signer).subscribe({
       next: (e: TxEvent) => {
-        if (e.type === 'signed') onSigned();
+        if (e.type === 'created') onSigned();
         // Falló ya en el primer bloque: no hace falta esperar la finalización.
-        if (e.type === 'txBestBlocksState' && e.found && e.ok === false) {
+        if (e.type === 'inBestBlock' && e.ok === false) {
           sub.unsubscribe();
           reject(new Error(describeDispatch(e.dispatchError)));
         }
diff --git a/app/src/lib/signer.ts b/app/src/lib/signer.ts
index ca3f717..39f22ff 100644
--- a/app/src/lib/signer.ts
+++ b/app/src/lib/signer.ts
@@ -19,7 +19,7 @@ import { getAccountsProvider, isInsideContainerSync } from '@parity/product-sdk-
 // Import estático a propósito: en el gateway dev-dot.li un chunk que se baja al pulsar
 // "Conectar" falló con "Failed to fetch dynamically imported module".
 import { SignerManager, type SignerManager as SM } from '@parity/product-sdk-signer';
-import type { PolkadotSigner } from 'polkadot-api';
+import type { SignerTxCreator as PolkadotSigner } from 'polkadot-api/tx-creator';
 import { hexToU8a, u8aToHex } from '@polkadot/util';
 import { encodeAddress } from '@polkadot/util-crypto';
 import { waitForHost, withTimeout, describeError, TIMED_OUT, HOST_QUERY_MS, HOST_SUBMIT_MS } from './host';
@@ -88,12 +88,15 @@ export async function connectSpeaker(): Promise<Speaker> {
     return speaker;
   }
 
-  const u = await withTimeout(manager.getUserId(), HOST_QUERY_MS).catch(() => null);
-  username = u && u !== TIMED_OUT && u.ok ? u.value.primaryUsername || null : null;
+  // El host puede mostrar un cuadro para compartir la identidad (SDK 0.39): tiempo de diálogo, no de consulta
+  const u = await withTimeout(manager.getUserId(), HOST_SUBMIT_MS).catch((e: unknown) => ({ ok: false as const, error: e }));
+  username = u !== TIMED_OUT && u.ok ? u.value.primaryUsername || null : null;
   identity = null;
   identityNote = null;
   if (!username) {
-    identityNote = 'tu cuenta no tiene username';
+    identityNote = u === TIMED_OUT ? 'el host no entregó tu username a tiempo (¿aprobaste compartir tu identidad?)'
+      : !u.ok ? `el host no entregó tu username: ${describeError(u.error)}`
+      : 'tu cuenta no tiene username';
   } else {
     try {
       const owner = await usernameOwner(username);
diff --git a/app/src/views/diagnostics.ts b/app/src/views/diagnostics.ts
index 511c2e1..721e28b 100644
--- a/app/src/views/diagnostics.ts
+++ b/app/src/views/diagnostics.ts
@@ -349,7 +349,7 @@ export function renderDiagnostics(root: HTMLElement): Cleanup {
         const signer = txSignerFor(payer);
         if (!signer) return ['no', 'sin firmante de transacciones para esta cuenta'];
         const tx = (await getClient()).getUnsafeApi().tx.System.remark({ remark: Binary.fromText('testalk diagnóstico') });
-        const signed = await withTimeout(tx.sign(signer), HOST_SUBMIT_MS);
+        const signed = await withTimeout(tx.create(signer), HOST_SUBMIT_MS);
         if (signed === TIMED_OUT) return ['no', 'la firma no llegó a tiempo: revisa el celular'];
         // Según la versión de polkadot-api llega como hex o como bytes.
         const out = signed as unknown as string | Uint8Array;
diff --git a/app/vite.config.ts b/app/vite.config.ts
index e664380..c121348 100644
--- a/app/vite.config.ts
+++ b/app/vite.config.ts
@@ -6,9 +6,9 @@ const version = (pkg: string) => JSON.parse(read(`${pkg}/package.json`)).version
 
 /**
  * Versiones del SDK y del protocolo host ↔ app, visibles en #/diagnostico.
- * El host y la app deben hablar el mismo códec de truapi: Polkadot Desktop 0.1.3
- * (host-api 0.9.4) habla el 1; truapi 0.16 en adelante habla el 2 y el host
- * descarta sus peticiones sin responder.
+ * El host y la app deben hablar el mismo códec de truapi: desde el 22–23 oct 2026
+ * la Polkadot App, Desktop 0.1.4 y dev-dot.li hablan TrUAPI 0.25 (códec 3); con
+ * otro códec el host descarta las peticiones sin responder.
  */
 const sdk = {
   host: version('@parity/product-sdk-host'),
diff --git a/docs/deploy.md b/docs/deploy.md
index 76a8cf5..e9e723f 100644
--- a/docs/deploy.md
+++ b/docs/deploy.md
@@ -103,7 +103,7 @@ con apps reales en el contenedor. testalk ya está escrito para convivir con est
 | `lookup` reporta `null` hasta encontrar el preimage | El verificador ignora los `null` y espera hasta 20 s |
 | La red dentro del contenedor necesita el permiso `Remote` por dominio | Se piden al arrancar: `localhost`, el gateway IPFS y los RPC públicos |
 | `localStorage` se vacía con cada release | El borrador de la charla dura la sesión; no publiques una versión nueva durante una charla |
-| Polkadot Desktop 0.1.3 habla el códec 1 del protocolo; `truapi` 0.16+ habla el 2 | SDK fijado en `product-sdk-host` 0.19.1 + `signer` 0.14.4. **No subirlo** sin comprobar el códec del host ([guía](products-devnet-guide.md#9-la-app-y-el-host-deben-hablar-el-mismo-protocolo)) |
+| Desde el 22–23 oct 2026 los hosts (App Android/iOS `devnet/2026-10-22.1`, Desktop 0.1.4, dev-dot.li) hablan TrUAPI 0.25, códec 3 | SDK fijado en `product-sdk-host` 0.28.0 + `signer` 0.17.3 + `polkadot-api` 3.2.1 (= `@parity/product-sdk` 0.39.0). **No subirlo** sin comprobar el códec del host ([guía](products-devnet-guide.md#9-la-app-y-el-host-deben-hablar-el-mismo-protocolo)) |
 | `SignerManager` entrega una cuenta de producto de la app, nunca la identidad del usuario | Se firma con la cuenta dueña del username en People chain; la de producto queda de respaldo y el recibo lo refleja |
 | En `*.dev-dot.li` el web shell no deriva cuentas de producto (TWR #18) | Presentar solo desde Polkadot Desktop; verificar sí funciona ahí |
 
diff --git a/docs/products-devnet-guide.md b/docs/products-devnet-guide.md
index ef20adf..8235008 100644
--- a/docs/products-devnet-guide.md
+++ b/docs/products-devnet-guide.md
@@ -382,25 +382,35 @@ esperando.
 
 | Paquete de tu app | Códec |
 |---|---|
-| `@parity/truapi` 0.5.1 a 0.13.1 (`product-sdk-host` 0.14.1 a 0.19.1, `product-sdk-signer` 0.11.1 a 0.14.4) | **1** |
-| `@parity/truapi` 0.16.0 en adelante (`product-sdk-host` 0.20.0+, `product-sdk-signer` 0.14.5+) | 2 |
+| `@parity/truapi` 0.5.1 a 0.13.1 (`product-sdk-host` 0.14.1 a 0.19.1, `product-sdk-signer` 0.11.1 a 0.14.4) | 1 |
+| `@parity/truapi` 0.16.0 a 0.24 (`product-sdk-host` 0.20.0 a 0.27) | 2 |
+| `@parity/truapi` **0.25** (`product-sdk-host` **0.28.0**, `product-sdk-signer` **0.17.3** = `@parity/product-sdk` **0.39.0**) | **3** |
 
-Polkadot Desktop 0.1.3 (septiembre de 2026) habla el **códec 1**. Con él
-funcionan `product-sdk-host` **0.19.1** + `product-sdk-signer` **0.14.4**
-(o el paquete `@parity/product-sdk` **0.27.0**, que trae esa pareja):
+Desde el update del devnet del **22–23 de octubre de 2026**, todos los hosts
+(Polkadot App Android e iOS `devnet/2026-10-22.1`, Polkadot Desktop **0.1.4** y
+`dev-dot.li`) hablan TrUAPI 0.25, el **códec 3**. Las apps con el códec 1 o 2
+ya no conectan. Usa exactamente el SDK 0.39.0 (el 0.40 en adelante habla
+TrUAPI 0.26, que estos hosts todavía no entienden) y `polkadot-api` 3:
 
 ```bash
-npm install --save-exact @parity/product-sdk-host@0.19.1 @parity/product-sdk-signer@0.14.4
-npm ls @parity/product-sdk-host @parity/truapi    # debe haber UNA sola copia de cada uno
+npm install --save-exact @parity/product-sdk@0.39.0 polkadot-api@3.2.1
+# o, si usas los paquetes sueltos, las versiones que fija el 0.39.0:
+npm install --save-exact @parity/product-sdk-host@0.28.0 @parity/product-sdk-signer@0.17.3 polkadot-api@3.2.1
+npm ls @parity/truapi polkadot-api    # debe haber UNA sola copia de cada uno
 ```
 
+Lo que cambia con `polkadot-api` 3: los firmantes son `TxCreator`
+(`getTxCreator` de `polkadot-api/tx-creator` en vez de `getPolkadotSigner`),
+`tx.signSubmitAndWatch(signer)` pasa a `tx.createSubmitAndWatch(signer)`,
+`signAndSubmit` a `createAndSubmit`, `sign` a `create`, y los eventos son
+`created` → `broadcasted` → `inBestBlock` → `finalized`.
+
 Cómo saber qué habla tu host, sin adivinar:
 
 ```bash
-# Versión del protocolo que trae Polkadot Desktop (Mac)
-npx @electron/asar extract-file "/Applications/Polkadot Desktop Dev.app/Contents/Resources/app.asar" \
-  node_modules/@novasamatech/host-api/dist/constants.js && cat constants.js
-# → export const SCALE_CODEC_PROTOCOL_ID = 1;
+# Versión de TrUAPI de un host: viene en las notas de su release
+gh release view devnet/2026-10-22.1 -R Polkadot-Community-Foundation/polkadot-desktop-community
+# → "pin truapi-host 0.25.0-pcf.1"
 
 # Versión que habla tu app
 grep -h "TRUAPI_CODEC_VERSION = " node_modules/@parity/truapi/dist/generated/client.js
@@ -474,7 +484,7 @@ por detrás. Esto es lo que medimos el 25 y 26 de septiembre de 2026:
 
 | La documentación dice | Lo que pasó de verdad |
 |---|---|
-| *"Install the latest release of every package"* | Vale para `pad` y `dotns`. Para el SDK de tu app, **no**: el más nuevo habla el códec 2 y Polkadot Desktop 0.1.3 el 1 ([sección 9](#9-la-app-y-el-host-deben-hablar-el-mismo-protocolo)) |
+| *"Install the latest release of every package"* | Vale para `pad` y `dotns`. Para el SDK de tu app, **no**: en octubre de 2026 los hosts hablan TrUAPI 0.25 (SDK 0.39.0) y el SDK más nuevo ya habla la 0.26 ([sección 9](#9-la-app-y-el-host-deben-hablar-el-mismo-protocolo)) |
 | *"Use labels nine characters or longer"* | Se cuenta la base **sin** los dígitos finales: `testalk26` tiene 9 caracteres y pidió personhood ([paso 3](#3-elegir-el-nombre-antes-que-nada)) |
 | *"Reads are container-only; there is no public IPFS-gateway fallback"* | El gateway IPFS del devnet sirvió lo que subió el host con `submit()` en 274 ms, byte por byte |
 | El archivo de configuración publica nombre, descripción e ícono | Con `pad login`, en `pad` 0.16.7 el manifest falla siempre ([paso 6](#el-manifest-puede-fallar-y-la-app-funciona-igual)) |
@@ -494,7 +504,7 @@ así el siguiente estudiante no pierde el mismo día.
 
 | Síntoma | Causa | Qué hacer |
 |---|---|---|
-| El SDK dice `connected` pero **nada** responde: permisos, cuentas, firmas | Tu app y el host hablan distinta versión de códec | [Sección 9](#9-la-app-y-el-host-deben-hablar-el-mismo-protocolo): usa `product-sdk-host` 0.19.1 + `signer` 0.14.4 con Desktop 0.1.3 |
+| El SDK dice `connected` pero **nada** responde: permisos, cuentas, firmas | Tu app y el host hablan distinta versión de códec | [Sección 9](#9-la-app-y-el-host-deben-hablar-el-mismo-protocolo): usa `@parity/product-sdk` 0.39.0 (TrUAPI 0.25) con los hosts de octubre de 2026 |
 | `testalk26.dot requires ProofOfPersonhoodLite, but this signer is NoStatus` | La base del nombre tiene menos de 9 caracteres | Elige un nombre con base de 9 o más ([paso 3](#3-elegir-el-nombre-antes-que-nada)). No se gastó nada: falló en la verificación previa |
 | La app aparece en otra red o el nombre "no existe" | Faltó `--env devnet` o `PAD_ENV=devnet` | Agrégalo en todos los comandos de `pad` y `dotns` |
 | `pad` se queda esperando y la `Y` no hace nada | La terminal manda el proceso a segundo plano | Usa Terminal.app u otra terminal normal |