fix: added hard fork date for responseConfirmedBlockHeightExists lut change

Author: LukaAvbreht

src/verification/confirmed-block-height-exists/confirmed-block-height-exists.ts

@@ -26,11 +26,18 @@ export function responseConfirmedBlockHeightExists(
   numberOfConfirmations: number,
   request: ConfirmedBlockHeightExists_Request,
 ) {
+  // Delete me after 1777366800 Thursday, 28 April 2026 at 11:00:00 CEST
+  let lut = lowerQueryWindowBlock.timestamp.toString();
+  const now = Math.round(Date.now() / 1000);
+  if (now < 1777366800) { // Thursday, 28 April 2026 at 11:00:00 CEST
+    lut = dbBlock.timestamp.toString();
+  }
+
   const response = new ConfirmedBlockHeightExists_Response({
     attestationType: request.attestationType,
     sourceId: request.sourceId,
     votingRound: '0',
-    lowestUsedTimestamp: lowerQueryWindowBlock.timestamp.toString(),
+    lowestUsedTimestamp: lut,
     requestBody: serializeBigInts(request.requestBody),
     responseBody: new ConfirmedBlockHeightExists_ResponseBody({
       blockTimestamp: dbBlock.timestamp.toString(),

test/e2e_tests/btc/confirmed_block_height_exists/confirmed_block_height_exists_prepare_response.e2e-spec.ts

@@ -2,6 +2,13 @@ import { expect } from 'chai';
 import * as request from 'supertest';
 import { app, baseHooks, getTestFile } from '../helper';
 
+// Hard fork for ConfirmedBlockHeightExists lowestUsedTimestamp.
+// Before: LUT = dbBlock.timestamp. After: LUT = lowerQueryWindowBlock.timestamp.
+// Keep in sync with src/verification/confirmed-block-height-exists/confirmed-block-height-exists.ts.
+const CBHE_LUT_HARDFORK_TIMESTAMP = 1777366800;
+const isBeforeLutHardfork = () =>
+  Math.round(Date.now() / 1000) < CBHE_LUT_HARDFORK_TIMESTAMP;
+
 describe(`/ConfirmedBlockHeightExists/prepareResponse (${getTestFile(__filename)})`, () => {
   baseHooks();
   it('should get status', async () => {
@@ -31,7 +38,7 @@ describe(`/ConfirmedBlockHeightExists/prepareResponse (${getTestFile(__filename)
     );
     expect(response.body.response.votingRound).to.be.equal('0');
     expect(response.body.response.lowestUsedTimestamp).to.be.equal(
-      '1732779896',
+      isBeforeLutHardfork() ? '1732779898' : '1732779896',
     );
     expect(response.body.response.requestBody.blockNumber).to.be.equal(
       '3490156',
@@ -97,7 +104,7 @@ describe(`/ConfirmedBlockHeightExists/prepareResponse (${getTestFile(__filename)
     );
     expect(response.body.response.votingRound).to.be.equal('0');
     expect(response.body.response.lowestUsedTimestamp).to.be.equal(
-      '1732779897',
+      isBeforeLutHardfork() ? '1732779898' : '1732779897',
     );
     expect(response.body.response.requestBody.blockNumber).to.be.equal(
       '3490156',
@@ -273,7 +280,7 @@ describe(`/ConfirmedBlockHeightExists/prepareResponse (${getTestFile(__filename)
     );
     expect(response.body.response.votingRound).to.be.equal('0');
     expect(response.body.response.lowestUsedTimestamp).to.be.equal(
-      '1732779896',
+      isBeforeLutHardfork() ? '1732779898' : '1732779896',
     );
     expect(response.body.response.requestBody.blockNumber).to.be.equal(
       '3490156',
@@ -319,7 +326,7 @@ describe(`/ConfirmedBlockHeightExists/prepareResponse (${getTestFile(__filename)
     );
     expect(response.body.response.votingRound).to.be.equal('0');
     expect(response.body.response.lowestUsedTimestamp).to.be.equal(
-      '1732779896',
+      isBeforeLutHardfork() ? '1732779898' : '1732779896',
     );
     expect(response.body.response.requestBody.blockNumber).to.be.equal(
       '3490156',
@@ -365,7 +372,7 @@ describe(`/ConfirmedBlockHeightExists/prepareResponse (${getTestFile(__filename)
     );
     expect(response.body.response.votingRound).to.be.equal('0');
     expect(response.body.response.lowestUsedTimestamp).to.be.equal(
-      '1732779896',
+      isBeforeLutHardfork() ? '1732779898' : '1732779896',
     );
     expect(response.body.response.requestBody.blockNumber).to.be.equal(
       '3490156',
@@ -411,7 +418,7 @@ describe(`/ConfirmedBlockHeightExists/prepareResponse (${getTestFile(__filename)
     );
     expect(response.body.response.votingRound).to.be.equal('0');
     expect(response.body.response.lowestUsedTimestamp).to.be.equal(
-      '1732779896',
+      isBeforeLutHardfork() ? '1732779898' : '1732779896',
     );
     expect(response.body.response.requestBody.blockNumber).to.be.equal(
       '3490156',

test/e2e_tests/doge/confirmed_block_height_exists/confirmed_block_height_exists_prepare_response.e2e-spec.ts

@@ -2,6 +2,13 @@ import { expect } from 'chai';
 import * as request from 'supertest';
 import { app, baseHooks, getTestFile } from '../helper';
 
+// Hard fork for ConfirmedBlockHeightExists lowestUsedTimestamp.
+// Before: LUT = dbBlock.timestamp. After: LUT = lowerQueryWindowBlock.timestamp.
+// Keep in sync with src/verification/confirmed-block-height-exists/confirmed-block-height-exists.ts.
+const CBHE_LUT_HARDFORK_TIMESTAMP = 1777366800;
+const isBeforeLutHardfork = () =>
+  Math.round(Date.now() / 1000) < CBHE_LUT_HARDFORK_TIMESTAMP;
+
 describe(`/ConfirmedBlockHeightExists/prepareResponse (${getTestFile(__filename)})`, () => {
   baseHooks();
   it('should get status', async () => {
@@ -31,7 +38,7 @@ describe(`/ConfirmedBlockHeightExists/prepareResponse (${getTestFile(__filename)
     );
     expect(response.body.response.votingRound).to.be.equal('0');
     expect(response.body.response.lowestUsedTimestamp).to.be.equal(
-      '1732810035',
+      isBeforeLutHardfork() ? '1732810040' : '1732810035',
     );
     expect(response.body.response.requestBody.blockNumber).to.be.equal(
       '6724543',
@@ -97,7 +104,7 @@ describe(`/ConfirmedBlockHeightExists/prepareResponse (${getTestFile(__filename)
     );
     expect(response.body.response.votingRound).to.be.equal('0');
     expect(response.body.response.lowestUsedTimestamp).to.be.equal(
-      '1732810035',
+      isBeforeLutHardfork() ? '1732810040' : '1732810035',
     );
     expect(response.body.response.requestBody.blockNumber).to.be.equal(
       '6724543',
@@ -273,7 +280,7 @@ describe(`/ConfirmedBlockHeightExists/prepareResponse (${getTestFile(__filename)
     );
     expect(response.body.response.votingRound).to.be.equal('0');
     expect(response.body.response.lowestUsedTimestamp).to.be.equal(
-      '1732810035',
+      isBeforeLutHardfork() ? '1732810040' : '1732810035',
     );
     expect(response.body.response.requestBody.blockNumber).to.be.equal(
       '6724543',
@@ -319,7 +326,7 @@ describe(`/ConfirmedBlockHeightExists/prepareResponse (${getTestFile(__filename)
     );
     expect(response.body.response.votingRound).to.be.equal('0');
     expect(response.body.response.lowestUsedTimestamp).to.be.equal(
-      '1732810035',
+      isBeforeLutHardfork() ? '1732810040' : '1732810035',
     );
     expect(response.body.response.requestBody.blockNumber).to.be.equal(
       '6724543',

test/e2e_tests/xrp/confirmed_block_height_exists/confirmed_block_height_exists_prepare_response.e2e-spec.ts

@@ -2,6 +2,13 @@ import { expect } from 'chai';
 import * as request from 'supertest';
 import { app, baseHooks, getTestFile } from '../helper';
 
+// Hard fork for ConfirmedBlockHeightExists lowestUsedTimestamp.
+// Before: LUT = dbBlock.timestamp. After: LUT = lowerQueryWindowBlock.timestamp.
+// Keep in sync with src/verification/confirmed-block-height-exists/confirmed-block-height-exists.ts.
+const CBHE_LUT_HARDFORK_TIMESTAMP = 1777366800;
+const isBeforeLutHardfork = () =>
+  Math.round(Date.now() / 1000) < CBHE_LUT_HARDFORK_TIMESTAMP;
+
 describe(`/ConfirmedBlockHeightExists/prepareResponse (${getTestFile(__filename)})`, () => {
   baseHooks();
   it('should get status', async () => {
@@ -31,7 +38,7 @@ describe(`/ConfirmedBlockHeightExists/prepareResponse (${getTestFile(__filename)
     );
     expect(response.body.response.votingRound).to.be.equal('0');
     expect(response.body.response.lowestUsedTimestamp).to.be.equal(
-      '1733476512',
+      isBeforeLutHardfork() ? '1733476521' : '1733476512',
     );
     expect(response.body.response.requestBody.blockNumber).to.be.equal(
       '2882191',
@@ -97,7 +104,7 @@ describe(`/ConfirmedBlockHeightExists/prepareResponse (${getTestFile(__filename)
     );
     expect(response.body.response.votingRound).to.be.equal('0');
     expect(response.body.response.lowestUsedTimestamp).to.be.equal(
-      '1733476520',
+      isBeforeLutHardfork() ? '1733476521' : '1733476520',
     );
     expect(response.body.response.requestBody.blockNumber).to.be.equal(
       '2882191',