Hash Chain

Documentation Index

Fetch the complete documentation index at: https://docs.threadify.dev/llms.txt

Use this file to discover all available pages before exploring further.

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Hash Properties

• Tamper-proof - Any modification breaks the chain
• Ordered - Ensures steps execute in correct sequence
• Verifiable - Chain integrity can be checked

• hash - Current step’s cryptographic hash
• prevHash - Previous step’s hash (null for first step)

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Chain Verification

// Verify hash chain integrity
const archivedThread = await threadify.getThread('thread-uuid');
const steps = await archivedThread.steps();

for (const step of steps) {
  if (step.verified) {
    console.log(`${step.stepName}: Verified ✓`);
  } else {
    console.error(`${step.stepName}: Chain broken`);
  }
}

// Verify hash chain integrity
archivedThread, err := conn.GetThread(ctx, "thread-uuid")
if err != nil {
    log.Fatal(err)
}

steps, err := archivedThread.Steps(ctx)
if err != nil {
    log.Fatal(err)
}

for _, step := range steps {
    if step.Verified {
        log.Printf("%s: Verified ✓", step.StepName)
    } else {
        log.Printf("%s: Chain broken", step.StepName)
    }
}

# Verify hash chain integrity
archived_thread = await conn.get_thread("thread-uuid")
steps = await archived_thread.steps()

for step in steps:
    if step.verified:
        print(f"{step.step_name}: Verified ✓")
    else:
        print(f"{step.step_name}: Chain broken")

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Benefits

• Integrity - Detects any modification to step data
• Ordering - Ensures steps execute in correct sequence
• Audit Trail - Immutable record of execution
• Trust - Cryptographic proof of execution

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Use Cases

• Compliance - Regulated industries need audit trails
• Dispute Resolution - Prove what actually happened
• Security - Detect unauthorized modifications
• Debugging - Identify where execution went wrong