[6.0.0] Support Header (de)serialization

core/shared/src/main/scala/sigma/SigmaDsl.scala

@@ -467,7 +467,7 @@ trait Header {
   def unparsedBytes: Coll[Byte]
 
   /**
-    * @return bytes without proof of work, needed for working to get the proof on
+    * @return header bytes without proof of work, a PoW is generated over them
     */
   def serializeWithoutPoW: Coll[Byte]
 

data/shared/src/main/scala/org/ergoplatform/ErgoHeader.scala

@@ -19,10 +19,10 @@ import sigma.serialization.{GroupElementSerializer, SigmaByteReader, SigmaByteWr
   * @param d  - distance between pseudo-random number, corresponding to nonce `n` and a secret,
   *           corresponding to `pk`. The lower `d` is, the harder it was to find this solution.
   */
-case class AutolykosSolution(pk: EcPointType,
-                             w: EcPointType,
-                             n: Array[Byte],
-                             d: BigInt) {
+class AutolykosSolution(val pk: EcPointType,
+                        val w: EcPointType,
+                        val n: Array[Byte],
+                        val d: BigInt) {
 
     val encodedPk: Array[Byte] = GroupElementSerializer.toBytes(pk)
 
@@ -52,7 +52,7 @@ object AutolykosSolution {
             val nonce = r.getBytes(8)
             val dBytesLength = r.getUByte()
             val d = BigInt(BigIntegers.fromUnsignedByteArray(r.getBytes(dBytesLength)))
-            AutolykosSolution(pk, w, nonce, d)
+            new AutolykosSolution(pk, w, nonce, d)
         }
     }
 
@@ -66,7 +66,7 @@ object AutolykosSolution {
         override def parse(r: SigmaByteReader): AutolykosSolution = {
             val pk = GroupElementSerializer.parse(r)
             val nonce = r.getBytes(8)
-            AutolykosSolution(pk, wForV2, nonce, dForV2)
+            new AutolykosSolution(pk, wForV2, nonce, dForV2)
         }
     }
 }

data/shared/src/main/scala/sigma/data/CHeader.scala

@@ -118,7 +118,7 @@ object CHeader {
              votes: Coll[Byte],
              unparsedBytes: Coll[Byte]): CHeader = {
 
-    val solution = AutolykosSolution(
+    val solution = new AutolykosSolution(
       minerPk.asInstanceOf[CGroupElement].wrappedValue,
       powOnetimePk.asInstanceOf[CGroupElement].wrappedValue,
       powNonce.toArray,

interpreter/shared/src/test/scala/sigma/serialization/SerializationSpecification.scala

@@ -35,7 +35,7 @@ trait SerializationSpecification extends AnyPropSpec
     }
     withVersion match {
       case Some(ver) =>
-        VersionContext.withVersions(ver, 1) {
+        VersionContext.withVersions(ver, 0) {
           test()
         }
       case None =>

sdk/shared/src/test/scala/org/ergoplatform/sdk/DataJsonEncoderSpecification.scala

@@ -31,7 +31,7 @@ class DataJsonEncoderSpecification extends SerializationSpecification {
 
     withVersion match {
       case Some(ver) =>
-        VersionContext.withVersions(ver, 1) {
+        VersionContext.withVersions(ver, 0) {
           test()
         }
       case None =>
@@ -233,7 +233,7 @@ class DataJsonEncoderSpecification extends SerializationSpecification {
     }
 
     if (tpe == SHeader)  {
-      VersionContext.withVersions(VersionContext.V6SoftForkVersion, 1) {
+      VersionContext.withVersions(VersionContext.V6SoftForkVersion, 0) {
         test()
       }
     } else {