D-KaP Blockchain Audit (part of EpochCore’s sealed-evidence product line) gives you a SOC 2 CC7-aligned change-management audit log where every event is sealed, hashed, and anchored to a public blockchain (Base L2). Even if someone breaks into your audit database, they can’t silently rewrite history—the public chain remembers.
SOC 2 Type II auditors look hard at CC7 (change management): can you prove every production change went through approval, who approved it, when, and what was deployed? Most firms keep this in a ticketing system or a database table—exactly the kind of internal record an auditor knows the company can edit. The auditor’s default question becomes “how do I know this log wasn’t reconstructed last week?”
The honest answer for most companies is: you don’t. That uncertainty becomes audit findings, extended fieldwork, and management-letter comments.
D-KaP Blockchain Audit is a tamper-evident change-management log designed for SOC 2 CC7. Every audit event you submit is sealed with three cryptographic signatures, then its hash is anchored to the Base layer-2 blockchain—a public ledger your auditor can independently inspect. The blockchain anchor means: even if your database is compromised, even if a rogue admin tries to rewrite a deploy record, the public chain holds an unalterable record of what existed when. Your auditor verifies inclusion against the chain, not against your word.
When a production change goes through approval (Jira ticket closed, pull request merged, deploy fired), POST the event details to /blockchain/audit: change type, approver, timestamp, target system, ticket reference. Same data you’re already capturing—just sent to one more endpoint.
The service returns a JSON receipt with three signatures and a Base L2 transaction hash. The transaction hash is your proof of inclusion on the public chain—a record your auditor can look up directly on a block explorer.
During SOC 2 fieldwork, give the auditor the one-page verification kit. The auditor picks any change events from the period, runs the verification script (about 20 seconds per event), and confirms each event existed on the chain at the claimed time—independent of anything you control.
Example: A 90-person SaaS company in Series B is doing its first SOC 2 Type II. The auditor flags CC7 change-management evidence as “reliance on internal ticketing log” with a planned exception. The VP Engineering pipes the company’s 800 production deploys for the period through /blockchain/audit (about $47,200 one-time) and gives the auditor the verification kit. The auditor samples 40 deploys, verifies each on the public chain in under 15 minutes, removes the exception, and the report goes out clean. Cost of the alternative—an audit qualification or a 60-day extension—was an order of magnitude higher.
A single SOC 2 CC7 audit exception adds 2–6 weeks of fieldwork and routinely produces a management-letter comment that delays customer onboarding for enterprise buyers. $59 per sealed change event is a fraction of the cost of one auditor follow-up cycle, and the chain anchor gives you something no internal ticketing log can: independence from your own infrastructure. The auditor doesn’t have to trust you—they verify the chain themselves.
The same chain-anchored event, plus the auditor verification kit (PDF) carries an invisible stealth watermark keyed to your trust root. The watermark gives you a second, image-layer chain of custody on the kit itself—useful when the kit gets re-screenshotted into the auditor’s workpapers or pasted into a customer’s vendor-risk review. Measured to stay attached through screenshots, JPEG compression, and scaling (90 of 136 attack vectors survived, false-positive rate zero, SSIM 0.985). Not “uncopyable”—the watermark layer can be stripped—but tamper-evident in the ways auditors actually care about. MEASURED