Audit chain

Append-only · KMS-signed · tamper-evident. The evidence spine for NBFC audit + DPDP.data: live
⛓ chain intact

Signed events (newest first)

Each event hashes {payload, prev_hash} and is signed by AWS KMS (ECDSA_SHA_256). Altering any past event breaks the chain — so disclosures, consent, blocks, dials and payments are provable and non-repudiable.