OrderLock - Revision history

Zhell at 17:44, 22 November 2025

2025-11-22T17:44:14Z

Zhell at 16:00, 22 November 2025

2025-11-22T16:00:43Z

Zhell at 15:56, 22 November 2025

2025-11-22T15:56:35Z

Zhell: Created page with " `contract OrderLock { // double hash of designated output, i.e. hash256(satoshis + varint + output script) Sha256 hashOutput; // trailingPrevouts..."`


2025-11-22T15:55:27Z
Created page with "<code class="mwt-code"> contract OrderLock {   // double hash of designated output, i.e. hash256(satoshis + varint + output script)   Sha256 hashOutput;    // trailingPrevouts..."
New page
<code class="mwt-code">

contract OrderLock {

  // double hash of designated output, i.e. hash256(satoshis + varint + output script)

  Sha256 hashOutput;



  // trailingPrevouts = concat all inputs (txid1 + vout1 + txid2 + vout2 + ...),

  // excluding first 2 inputs, i.e. cancel baton input and self input

  public function unlock(SigHashPreimage preimage, bytes trailingPrevouts, bool isCancel) {

      // c3 = SIGHASH_SINGLE | ANYONECANPAY, checks self input, self output

      SigHashType sigHashType = SigHashType(b'c3');

      if (isCancel) {

          // 42 = SIGHASH_NONE, checks all inputs, no outputs

          sigHashType = SigHashType(b'42');

          // token lock input txid + vout, 32 + 4 bytes

          bytes selfOutpoint = preimage[68 : 104];

          // cancel baton input, same locking tx as token lock input, vout must be 0

          bytes cancelOutpoint = selfOutpoint[: 32] + b'00000000';

          // reconstruct full prevouts, double hash, check against preimage hashPrevouts

          require(hash256(selfOutpoint + cancelOutpoint + trailingPrevouts) == preimage[4 : 36]);

      } else {

          // check against preimage hashOutputs, with SIGHASH_SINGLE, only self output is hashed

          require(preimage[len(preimage) - 40 : len(preimage) - 8] == this.hashOutput);

      }

      // check preimage

      require(Tx.checkPreimageAdvanced(

          preimage,

          PrivKey(0xeb1c653e7471a63154d06b27f95bb028a5e826b4e73665ed3effe549cc85b2cd),

          PubKey(b'02dca1e194dd541a47f4c85fea6a4d45bb50f16ed2fddc391bf80b525454f8b409'),

          0x377d4cbae29bc1e717958cb6b030f71e2e634e1e700991a0ea02181c6ba241f9,

          0x2cde0b36a3821ef6dbd1cc8d754dcbae97526904b063c2722da89735162d282f,

          b'2cde0b36a3821ef6dbd1cc8d754dcbae97526904b063c2722da89735162d282f',

          sigHashType

      ));

  }

}

</code>

← Older revision		Revision as of 17:44, 22 November 2025
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	OrderLock contract code		OrderLock contract code

		+	might be a bit outdated, for newer versions check [https://docs.scrypt.io/bsv-docs/tokens/tutorials/ordinal-lock/ https://docs.scrypt.io/bsv-docs/tokens/tutorials/ordinal-lock/]

	<syntaxhighlight lang="javascript">		<syntaxhighlight lang="javascript">

← Older revision		Revision as of 16:00, 22 November 2025
Line 1:		Line 1:
		+	OrderLock contract code
		+
		+
	<syntaxhighlight lang="javascript">		<syntaxhighlight lang="javascript">
	contract OrderLock {		contract OrderLock {

@@ Line 1: / Line 1: @@
-<code class="mwt-code">
+<syntaxhighlight lang="javascript">
 contract OrderLock {
    // double hash of designated output, i.e. hash256(satoshis + varint + output script)
@@ Line 34: / Line 34: @@
+   }
+}
-</code>
+</syntaxhighlight>

OrderLock - Revision history

Zhell at 17:44, 22 November 2025

Zhell at 16:00, 22 November 2025

Zhell at 15:56, 22 November 2025

Zhell: Created page with " contract OrderLock { // double hash of designated output, i.e. hash256(satoshis + varint + output script) Sha256 hashOutput; // trailingPrevouts..."

Zhell: Created page with " `contract OrderLock { // double hash of designated output, i.e. hash256(satoshis + varint + output script) Sha256 hashOutput; // trailingPrevouts..."`