An immutable, write once ledger for every AI verification. Each entry is SHA-256 hashed and chained to the previous record, creating a tamper-evident history that can never be altered, deleted, or reordered.
Tamper-proof records for every AI decision.
Every verification is written once and can never be modified or deleted. The ledger is append only by design.
Every entry is SHA-256 hashed and linked to the previous entry, creating a tamper-evident chain.
Entries are sequentially numbered and timestamped. The order of events is cryptographically guaranteed.
Every verification creates an immutable record in the ledger, anchored by cryptographic hashes and chained sequentially.
AI output verified, trust score generated, governance rules evaluated. The full verification context is prepared for permanent recording.
Full verification record written to the ledger with a SHA-256 hash and chain link to the previous entry.
New entry linked to the previous record, extending the tamper-evident chain. Any modification would break the hash chain, making tampering immediately detectable.
Input · Claims · Evidence · Score · Governance
SHA-256 hash of record contents
Record hash + Previous hash → Chain extended
Append-only · Immutable · Tamper-evident
Cryptographic guarantees at every layer of the ledger.
Each entry contains the hash of the previous entry, creating an unbreakable chain of custody.
Every export shows its hash and "Tamper-evident since" timestamp for instant verification.
Automatic detection and flagging of any chain inconsistencies or integrity violations.
Real-time view of every verification permanently recorded.
| # | Timestamp | Type | Trust Score | Hash (truncated) |
|---|---|---|---|---|
| #1,847 | 2025-01-15 14:32:00 | Verification | 0.94 | sha256:a7f3... |
| #1,846 | 2025-01-15 14:28:15 | Agent Trace | 0.91 | sha256:b2c8... |
| #1,845 | 2025-01-15 14:15:42 | Multi-Modal | 0.88 | sha256:d4e1... |
| #1,844 | 2025-01-15 13:59:08 | Verification | 0.96 | sha256:f7a3... |
A single GET to /api/sentinel/vault/v2/entries returns paginated vault entries with full chain validation status.
GET /api/sentinel/vault/v2/entries?limit=10
// Response
{
"entries": [
{
"sequence": 1847,
"trace_id": "trc_9f8a7b6c",
"type": "verification",
"trust_score": 0.94,
"hash": "sha256:a7f3b9c2d4...",
"prev_hash": "sha256:b2c8e1f5a7...",
"created_at": "2025-01-15T14:32:00Z"
}
],
"total": 1847,
"chain_valid": true
}Deploy immutable record-keeping across your entire AI infrastructure. Tamper-evident from day one.