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Derive Vector slot config from chain instead of hardcoding testnet epoch

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The SLOT_CONFIG_NETWORK.Mainnet zeroTime was hardcoded to the testnet
system start (1752057484000), causing RATE:slot_mismatch failures on
mainnet where the actual system start is 1756485600000. Now queries
Ogmios queryNetwork/startTime on first use and caches the result.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
david
2026-04-16 00:10:13 +02:00
parent d21bf23307
commit a8403e6082
2 changed files with 26 additions and 7 deletions
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23
src/vector/governance.ts
View File

@@ -5,8 +5,17 @@
import { z } from "zod";
import { Lucid, fromText, toText, Data, Constr, credentialToAddress, getAddressDetails, SLOT_CONFIG_NETWORK } from '@lucid-evolution/lucid';
// Vector testnet slot config — system start 2025-07-09T10:38:04Z, 1s slots
SLOT_CONFIG_NETWORK.Mainnet = { zeroTime: 1752057484000, zeroSlot: 0, slotLength: 1000 };
// Vector slot config — resolved from chain via Ogmios queryNetwork/startTime
// Cached after first query so SLOT_CONFIG_NETWORK is set before Lucid needs it
let vectorZeroTime: number | null = null;
async function ensureSlotConfig(provider: OgmiosProvider): Promise<number> {
if (vectorZeroTime === null) {
vectorZeroTime = await provider.getSystemStartMs();
SLOT_CONFIG_NETWORK.Mainnet = { zeroTime: vectorZeroTime, zeroSlot: 0, slotLength: 1000 };
}
return vectorZeroTime;
}
import { blake2b } from '@noble/hashes/blake2b';
import { S3Client, PutObjectCommand } from '@aws-sdk/client-s3';
import { OgmiosProvider } from './ogmios-provider.js';
@@ -478,6 +487,7 @@ Each batch UTxO holds ~30 AP3X for adoption rewards.`,
if (!finalUri) throw new Error('storageUri is required. Provide proposalDocument for auto-upload or storageUri manually.');
const provider = newProvider();
const zeroTime = await ensureSlotConfig(provider);
const lucid = await Lucid(provider, 'Mainnet');
lucid.selectWallet.fromSeed(mnemonic.trim());
const walletAddress = await lucid.wallet().address();
@@ -509,7 +519,7 @@ Each batch UTxO holds ~30 AP3X for adoption rewards.`,
// Get current POSIX time for datum (Plutus validity range uses POSIX ms, not slots)
const tip = await provider.getNetworkTip?.() || { slot: 0 };
const currentSlot = 1752057484000 + (tip.slot || 0) * 1000; // POSIX ms
const currentSlot = zeroTime + (tip.slot || 0) * 1000; // POSIX ms
// Priority datum
const priorityDatum = priority === 'Emergency' ? new Constr(1, []) : new Constr(0, []);
@@ -559,12 +569,9 @@ Each batch UTxO holds ~30 AP3X for adoption rewards.`,
// Get current slot and derive POSIX times for validity range
// The validator checks: activity.last_proposal_slot == tx_validity_lower_bound
// Use Lucid's own slotToUnixTime to guarantee the POSIX→slot roundtrip is exact
const tip2 = await provider.getNetworkTip();
const spendSlot = tip2.slot;
// Convert slot → POSIX ms using Vector testnet genesis (2025-07-09T10:38:04Z)
// This ensures validFrom converts back to exactly spendSlot after Lucid's POSIX→slot roundtrip
const validFromMs = 1752057484000 + spendSlot * 1000;
const validFromMs = zeroTime + spendSlot * 1000;
const validToMs = validFromMs + 360_000; // 6 minutes from spendSlot
// Activity datum (first proposal: count=1)
@@ -740,6 +747,7 @@ activity tracking token (\`pact_\`) minted. Visible on the Foundation dashboard.
if (!finalUri) throw new Error('storageUri is required. Provide critiqueDocument or storageUri manually.');
const provider = newProvider();
await ensureSlotConfig(provider);
const lucid = await Lucid(provider, 'Mainnet');
lucid.selectWallet.fromSeed(mnemonic.trim());
const walletAddress = await lucid.wallet().address();
@@ -842,6 +850,7 @@ ${ipfsCid ? `**IPFS CID:** ${ipfsCid}\n**Hash (auto-computed):** ${finalHash}` :
try {
const provider = newProvider();
await ensureSlotConfig(provider);
const lucid = await Lucid(provider, 'Mainnet');
lucid.selectWallet.fromSeed(mnemonic.trim());

10
src/vector/ogmios-provider.ts
View File

@@ -181,6 +181,16 @@ export class OgmiosProvider implements Provider {
};
}
/**
* Query the genesis system start time from Ogmios.
* Returns POSIX milliseconds (e.g. 1756485600000 for Vector mainnet).
*/
async getSystemStartMs(): Promise<number> {
const result = await this.rpc('queryNetwork/startTime');
// Result is an ISO 8601 string, e.g. "2025-08-29T16:40:00Z"
return new Date(result).getTime();
}
async getUtxosByOutRef(outRefs: OutRef[]): Promise<UTxO[]> {
const outputReferences = outRefs.map((ref) => ({
transaction: { id: ref.txHash },