Merge pull request #17 from sCrypt-Inc/verifyBlockHeader

Verify block header
sCrypt-Inc · Mar 7, 2024 · 8b195f9 · 8b195f9
2 parents a3a55c5 + cb8b0e0
commit 8b195f9
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Showing 4 changed files with 12 additions and 3 deletions.
diff --git a/.npmignore b/.npmignore
@@ -15,4 +15,5 @@ tsconfig.json
 /artifacts/**/*.scrypt.map
 /artifacts/**/*.json
 .asm/
+tsconfig-scryptTS.json
 
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "scrypt-ts-lib",
-  "version": "0.1.27",
+  "version": "0.1.28",
   "description": "A collection of smart contract libraries for `scrypt-ts`.",
   "types": "dist/index.d.ts",
   "main": "dist/index.js",

diff --git a/src/blockchain.ts b/src/blockchain.ts
@@ -122,6 +122,14 @@ export class Blockchain extends SmartContractLib {
         return bhHash <= target && target <= blockchainTarget
     }
 
+    @method()
+    static verifyBlockHeader(bh: BlockHeader): boolean {
+        const bhHash = Blockchain.blockHeaderHashAsInt(bh)
+        const target = Blockchain.bits2Target(bh.bits)
+        // Block hash below target
+        return bhHash <= target
+    }
+
     // Is a chain of block headers valid.
     // TODO