Your AI Agent Forgets.
Memory Spine Doesn't.
Deterministic, hash-chained memory for AI agents. Every state transition is receipted. Nothing gets silently overwritten.
Cryptographic proof of what your agent knew — and when.
Hash-Chained Entries
Every memory entry chains to the previous via SHA-256. Tamper with one, break the chain. Immutable by design.
Cryptographic Receipts
Every store operation returns a verifiable receipt. Prove what your agent knew at any point in time.
Deterministic Recovery
Replay from any checkpoint. Your agent wakes up with full context, every time. No drift, no loss.
Sovereign Storage
Your data stays yours. Self-host or use our infrastructure. Export anytime. No lock-in.
Sub-10ms Writes
Fast enough for real-time agents. Append-only architecture means no read-modify-write overhead.
Compliance Ready
Built-in audit trails for regulated industries. Every memory operation is logged and verifiable.
The Problem We Solve
✗ Typical AI Memory
- Context windows overflow and truncate
- Embeddings drift over time
- State gets silently overwritten
- No proof of what agent "knew"
- Recovery is guesswork
- Compliance teams can't audit
✓ Memory Spine
- Unlimited append-only storage
- Hash-chained immutability
- Nothing silently changes
- Cryptographic receipts prove state
- Deterministic checkpoint recovery
- Full audit trail for compliance
How It Works
Store
POST state to the API. Get a receipt back.
Chain
Entry hashes to previous. Chain grows.
Verify
Check any entry. Prove chain integrity.
Recover
Replay from checkpoint. Full context restored.
Simple API
# Store agent state
curl -X POST https://memory.six-sov.com/v1/memory/store \
-H "Authorization: Bearer $API_KEY" \
-H "Content-Type: application/json" \
-d '{
"agent_id": "my-agent",
"state": {"context": "user prefers dark mode"},
"label": "preference-update"
}'
# Response: Receipt with chain proof
{
"entry_id": "mem_a1b2c3d4",
"chain_hash": "sha256:e3b0c44298fc...",
"depth": 47,
"receipt": "rcpt_f8c505ce..."
}Simple Pricing
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