diff --git a/logging/compat.go b/logging/compat.go
new file mode 100644
index 0000000..404910c
--- /dev/null
+++ b/logging/compat.go
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: EUPL-1.2
+
+package logging
+
+// WithComponent returns a new Logger scoped to one component.
+// Deprecated: Use ComponentLogger instead.
+//
+//	transportLogger := logger.WithComponent("transport")
+func (l *Logger) WithComponent(component string) *Logger {
+	return l.ComponentLogger(component)
+}
+
+// GetLevel returns the current log level.
+// Preferred over Level for AX naming consistency.
+//
+//	level := logger.GetLevel()
+func (l *Logger) GetLevel() Level {
+	return l.Level()
+}
+
+// GetGlobal returns the global logger instance.
+// Deprecated: Use Global instead.
+//
+//	logger := GetGlobal()
+func GetGlobal() *Logger {
+	return Global()
+}
diff --git a/logging/compat_test.go b/logging/compat_test.go
new file mode 100644
index 0000000..1310c17
--- /dev/null
+++ b/logging/compat_test.go
@@ -0,0 +1,39 @@
+package logging
+
+import (
+	"bytes"
+	"testing"
+
+	core "dappco.re/go/core"
+)
+
+func TestGetLevel_Good(t *testing.T) {
+	logger := New(Config{Output: &bytes.Buffer{}, Level: LevelWarn})
+	if logger.GetLevel() != LevelWarn {
+		t.Errorf("GetLevel() = %v, want %v", logger.GetLevel(), LevelWarn)
+	}
+	if logger.GetLevel() != logger.Level() {
+		t.Error("GetLevel() and Level() should return the same value")
+	}
+}
+
+func TestWithComponent_Good(t *testing.T) {
+	var buf bytes.Buffer
+	parent := New(Config{Output: &buf, Level: LevelInfo})
+	child := parent.WithComponent("TestChild")
+	child.Info("test message")
+	if !core.Contains(buf.String(), "[TestChild]") {
+		t.Error("WithComponent should set the component name")
+	}
+}
+
+func TestGetGlobal_Good(t *testing.T) {
+	var buf bytes.Buffer
+	logger := New(Config{Output: &buf, Level: LevelInfo})
+	SetGlobal(logger)
+	got := GetGlobal()
+	if got != Global() {
+		t.Error("GetGlobal() and Global() should return the same logger")
+	}
+	SetGlobal(New(DefaultConfig()))
+}
diff --git a/node/compat.go b/node/compat.go
new file mode 100644
index 0000000..fce12ad
--- /dev/null
+++ b/node/compat.go
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: EUPL-1.2
+
+// This file provides deprecated compatibility aliases and type aliases
+// for spec compatibility. Canonical names are defined in their respective
+// source files; these aliases exist so that code written against the spec
+// documentation continues to compile.
+
+package node
+
+// NewNodeManagerWithPaths loads or creates a node identity store at explicit paths.
+// Deprecated: Use NewNodeManagerFromPaths instead.
+//
+//	nodeManager, err := NewNodeManagerWithPaths("/srv/p2p/private.key", "/srv/p2p/node.json")
+func NewNodeManagerWithPaths(keyPath, configPath string) (*NodeManager, error) {
+	return NewNodeManagerFromPaths(keyPath, configPath)
+}
+
+// NewPeerRegistryWithPath loads or creates a peer registry at an explicit path.
+// Deprecated: Use NewPeerRegistryFromPath instead.
+//
+//	peerRegistry, err := NewPeerRegistryWithPath("/srv/p2p/peers.json")
+func NewPeerRegistryWithPath(peersPath string) (*PeerRegistry, error) {
+	return NewPeerRegistryFromPath(peersPath)
+}
+
+// RegisterWithTransport installs the worker message handler on the transport.
+// Deprecated: Use RegisterOnTransport instead.
+//
+//	worker.RegisterWithTransport()
+func (w *Worker) RegisterWithTransport() {
+	w.RegisterOnTransport()
+}
+
+// ConnectedPeers returns the number of connected peers.
+// Deprecated: Use ConnectedPeerCount instead.
+//
+//	count := transport.ConnectedPeers()
+func (t *Transport) ConnectedPeers() int {
+	return t.ConnectedPeerCount()
+}
+
+// GetLogsPayload is an alias for LogsRequestPayload.
+// Provided for spec compatibility.
+//
+//	payload := GetLogsPayload{MinerName: "xmrig-0", Lines: 100}
+type GetLogsPayload = LogsRequestPayload
diff --git a/node/compat_test.go b/node/compat_test.go
new file mode 100644
index 0000000..9b197aa
--- /dev/null
+++ b/node/compat_test.go
@@ -0,0 +1,57 @@
+package node
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestNewNodeManagerWithPaths_Good(t *testing.T) {
+	keyPath := t.TempDir() + "/private.key"
+	configPath := t.TempDir() + "/node.json"
+
+	nm, err := NewNodeManagerWithPaths(keyPath, configPath)
+	require.NoError(t, err)
+	assert.NotNil(t, nm)
+	assert.False(t, nm.HasIdentity(), "fresh manager should have no identity")
+}
+
+func TestNewPeerRegistryWithPath_Good(t *testing.T) {
+	peersPath := t.TempDir() + "/peers.json"
+
+	pr, err := NewPeerRegistryWithPath(peersPath)
+	require.NoError(t, err)
+	assert.NotNil(t, pr)
+	assert.Equal(t, 0, pr.Count())
+	pr.Close()
+}
+
+func TestGetLogsPayload_Good(t *testing.T) {
+	var payload GetLogsPayload
+	payload.MinerName = "xmrig-0"
+	payload.Lines = 100
+	payload.Since = 1234567890
+
+	var request LogsRequestPayload = payload
+	assert.Equal(t, "xmrig-0", request.MinerName)
+	assert.Equal(t, 100, request.Lines)
+	assert.Equal(t, int64(1234567890), request.Since)
+}
+
+func TestTransportConnectedPeers_Good(t *testing.T) {
+	keyPath := t.TempDir() + "/private.key"
+	configPath := t.TempDir() + "/node.json"
+	peersPath := t.TempDir() + "/peers.json"
+
+	nm, err := NewNodeManagerFromPaths(keyPath, configPath)
+	require.NoError(t, err)
+
+	pr, err := NewPeerRegistryFromPath(peersPath)
+	require.NoError(t, err)
+	defer pr.Close()
+
+	transport := NewTransport(nm, pr, DefaultTransportConfig())
+	assert.Equal(t, transport.ConnectedPeerCount(), transport.ConnectedPeers())
+	assert.Equal(t, 0, transport.ConnectedPeers())
+}
diff --git a/node/levin/compat.go b/node/levin/compat.go
new file mode 100644
index 0000000..a88bdfb
--- /dev/null
+++ b/node/levin/compat.go
@@ -0,0 +1,87 @@
+// Copyright (c) 2024-2026 Lethean Contributors
+// SPDX-License-Identifier: EUPL-1.2
+
+// This file provides short-form aliases for Value constructors,
+// matching the naming used in the spec documentation.
+
+package levin
+
+// Uint64Val creates a Value of TypeUint64. Short-form alias for Uint64Value.
+//
+//	value := Uint64Val(42)
+func Uint64Val(v uint64) Value { return Uint64Value(v) }
+
+// Uint32Val creates a Value of TypeUint32. Short-form alias for Uint32Value.
+//
+//	value := Uint32Val(42)
+func Uint32Val(v uint32) Value { return Uint32Value(v) }
+
+// Uint16Val creates a Value of TypeUint16. Short-form alias for Uint16Value.
+//
+//	value := Uint16Val(42)
+func Uint16Val(v uint16) Value { return Uint16Value(v) }
+
+// Uint8Val creates a Value of TypeUint8. Short-form alias for Uint8Value.
+//
+//	value := Uint8Val(42)
+func Uint8Val(v uint8) Value { return Uint8Value(v) }
+
+// Int64Val creates a Value of TypeInt64. Short-form alias for Int64Value.
+//
+//	value := Int64Val(42)
+func Int64Val(v int64) Value { return Int64Value(v) }
+
+// Int32Val creates a Value of TypeInt32. Short-form alias for Int32Value.
+//
+//	value := Int32Val(42)
+func Int32Val(v int32) Value { return Int32Value(v) }
+
+// Int16Val creates a Value of TypeInt16. Short-form alias for Int16Value.
+//
+//	value := Int16Val(42)
+func Int16Val(v int16) Value { return Int16Value(v) }
+
+// Int8Val creates a Value of TypeInt8. Short-form alias for Int8Value.
+//
+//	value := Int8Val(42)
+func Int8Val(v int8) Value { return Int8Value(v) }
+
+// BoolVal creates a Value of TypeBool. Short-form alias for BoolValue.
+//
+//	value := BoolVal(true)
+func BoolVal(v bool) Value { return BoolValue(v) }
+
+// DoubleVal creates a Value of TypeDouble. Short-form alias for DoubleValue.
+//
+//	value := DoubleVal(3.14)
+func DoubleVal(v float64) Value { return DoubleValue(v) }
+
+// StringVal creates a Value of TypeString. Short-form alias for StringValue.
+//
+//	value := StringVal([]byte("hello"))
+func StringVal(v []byte) Value { return StringValue(v) }
+
+// ObjectVal creates a Value of TypeObject. Short-form alias for ObjectValue.
+//
+//	value := ObjectVal(Section{"id": StringVal([]byte("peer-1"))})
+func ObjectVal(s Section) Value { return ObjectValue(s) }
+
+// Uint64ArrayVal creates a typed array of uint64 values. Short-form alias for Uint64ArrayValue.
+//
+//	value := Uint64ArrayVal([]uint64{1, 2, 3})
+func Uint64ArrayVal(vs []uint64) Value { return Uint64ArrayValue(vs) }
+
+// Uint32ArrayVal creates a typed array of uint32 values. Short-form alias for Uint32ArrayValue.
+//
+//	value := Uint32ArrayVal([]uint32{1, 2, 3})
+func Uint32ArrayVal(vs []uint32) Value { return Uint32ArrayValue(vs) }
+
+// StringArrayVal creates a typed array of byte-string values. Short-form alias for StringArrayValue.
+//
+//	value := StringArrayVal([][]byte{[]byte("a"), []byte("b")})
+func StringArrayVal(vs [][]byte) Value { return StringArrayValue(vs) }
+
+// ObjectArrayVal creates a typed array of Section values. Short-form alias for ObjectArrayValue.
+//
+//	value := ObjectArrayVal([]Section{{"id": StringVal([]byte("peer-1"))}})
+func ObjectArrayVal(vs []Section) Value { return ObjectArrayValue(vs) }
diff --git a/node/levin/compat_test.go b/node/levin/compat_test.go
new file mode 100644
index 0000000..72de5f4
--- /dev/null
+++ b/node/levin/compat_test.go
@@ -0,0 +1,66 @@
+// Copyright (c) 2024-2026 Lethean Contributors
+// SPDX-License-Identifier: EUPL-1.2
+
+package levin
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestShortFormAliases_Good(t *testing.T) {
+	assert.Equal(t, Uint64Value(42), Uint64Val(42))
+	assert.Equal(t, Uint32Value(42), Uint32Val(42))
+	assert.Equal(t, Uint16Value(42), Uint16Val(42))
+	assert.Equal(t, Uint8Value(42), Uint8Val(42))
+	assert.Equal(t, Int64Value(-42), Int64Val(-42))
+	assert.Equal(t, Int32Value(-42), Int32Val(-42))
+	assert.Equal(t, Int16Value(-42), Int16Val(-42))
+	assert.Equal(t, Int8Value(-42), Int8Val(-42))
+	assert.Equal(t, BoolValue(true), BoolVal(true))
+	assert.Equal(t, DoubleValue(3.14), DoubleVal(3.14))
+	assert.Equal(t, StringValue([]byte("hello")), StringVal([]byte("hello")))
+
+	section := Section{"key": StringValue([]byte("value"))}
+	assert.Equal(t, ObjectValue(section), ObjectVal(section))
+
+	assert.Equal(t, Uint64ArrayValue([]uint64{1, 2}), Uint64ArrayVal([]uint64{1, 2}))
+	assert.Equal(t, Uint32ArrayValue([]uint32{1, 2}), Uint32ArrayVal([]uint32{1, 2}))
+	assert.Equal(t, StringArrayValue([][]byte{[]byte("a")}), StringArrayVal([][]byte{[]byte("a")}))
+	assert.Equal(t, ObjectArrayValue([]Section{section}), ObjectArrayVal([]Section{section}))
+}
+
+func TestShortFormAliasesRoundTrip_Good(t *testing.T) {
+	s := Section{
+		"u64":  Uint64Val(0xCAFEBABE),
+		"str":  StringVal([]byte("hello")),
+		"flag": BoolVal(true),
+		"obj":  ObjectVal(Section{"nested": Int32Val(42)}),
+	}
+
+	data, err := EncodeStorage(s)
+	require.NoError(t, err)
+
+	decoded, err := DecodeStorage(data)
+	require.NoError(t, err)
+
+	u64, err := decoded["u64"].AsUint64()
+	require.NoError(t, err)
+	assert.Equal(t, uint64(0xCAFEBABE), u64)
+
+	str, err := decoded["str"].AsString()
+	require.NoError(t, err)
+	assert.Equal(t, []byte("hello"), str)
+
+	flag, err := decoded["flag"].AsBool()
+	require.NoError(t, err)
+	assert.True(t, flag)
+
+	obj, err := decoded["obj"].AsSection()
+	require.NoError(t, err)
+	nested, err := obj["nested"].AsInt32()
+	require.NoError(t, err)
+	assert.Equal(t, int32(42), nested)
+}
diff --git a/ueps/compat.go b/ueps/compat.go
new file mode 100644
index 0000000..2b81812
--- /dev/null
+++ b/ueps/compat.go
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: EUPL-1.2
+
+package ueps
+
+// Short-form tag aliases for spec compatibility.
+const (
+	// TagCurrentLay is a short-form alias for TagCurrentLayer.
+	TagCurrentLay = TagCurrentLayer
+	// TagTargetLay is a short-form alias for TagTargetLayer.
+	TagTargetLay = TagTargetLayer
+)
diff --git a/ueps/compat_test.go b/ueps/compat_test.go
new file mode 100644
index 0000000..d57fc01
--- /dev/null
+++ b/ueps/compat_test.go
@@ -0,0 +1,14 @@
+package ueps
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestTagAliases_Good(t *testing.T) {
+	assert.Equal(t, TagCurrentLayer, TagCurrentLay)
+	assert.Equal(t, TagTargetLayer, TagTargetLay)
+	assert.Equal(t, 0x02, TagCurrentLay)
+	assert.Equal(t, 0x03, TagTargetLay)
+}