HBCE Verifier — Evidence Pack v2 (Offline-Real)

Verifies: canonical(preimage) → SHA-512 pack_root_hash → ECDSA P-256 signature, plus ledger append-only hash-chain and per-record integrity. Fail-closed.

INPUT Evidence Pack v2 JSON
On PASS, this verifier stores HBCE_LAST_PACK_ROOT locally and broadcasts HBCE_LAST_PACK_ROOT_TS so other tabs (homepage) can update.
REPORT PASS/FAIL
Load a pack and press Verify.
Pack: Root: PackSig: Ledger: Records: Persist:
# Event D Hash Record Sig Note