Observability & Audit

End-to-end transaction tracing and verifiable audit trails.

The cryptographic record of what happened — across instances, across networks, across time. Every signed exchange leaves an anchor; every anchor is verifiable.

What it gives you

• Commitment-chain anchors — periodic hashes of each instance's state, published to Fabric.

• End-to-end traces — span every hop of a transaction across services, instances, and adapters.

• Verifiable audit trails — replayable, signed, and cryptographically grounded.

• Anchoring proofs — BLAKE2 + chain-anchored proofs for any record.

• Selective disclosure — share an audit slice without revealing private state.

Where it sits

• Service NFH runs — the anchor-acceptance and aggregation surface.

• Protocol NFH defines — anchoring formats and audit-record schemas.

Use it for

• Regulators and auditors needing a tamper-evident trail.

• Resolving disputes without surrendering private state.

• Proving provenance, custody, and chain-of-events for any asset or transaction.

• Compliance reporting with cryptographic guarantees.

Standards alignment

OpenTelemetry · BLAKE2 hashing · open anchoring protocols.

This service is also Fabric's signal-and-health surface — network telemetry (flows, instance health, supply summaries) for operators and participants, alongside the cryptographic audit trail.