category: valid

expected_result: PASS

kind: signed DSSE khipu chain

note: 5-receipt signed hash chain, seq 0->4; each prev == previous.digest; DSSE PAE content hash recomputed.


kind: signed DSSE khipu genesis receipt

note: Single genesis receipt (seq 0, prev = 64 zeros), from the 2026-06-27 shard; DSSE PAE content hash verified.


kind: inference decision receipt

note: decision=allow with measured-or-null energy (joules=null, label=UNAVAILABLE) in the clear.


source_dataset: SZLHOLDINGS/readiness-runs

kind: unsigned readiness envelope

note: unsigned DSSE-style envelope; content bound by payloadSha256 over raw payload bytes.


source_dataset: SZLHOLDINGS/szl-evidence

kind: HMAC-stub daily activity receipt

note: daily activity envelope, hmac-stub signing; structural + schema checks only.


category: invalid

expected_result: FAIL

source_dataset: derived from a11oy-khipu-chain.json (LABELED TAMPER, not real)

kind: content-hash tamper

note: One payload byte flipped -> sha256(DSSE PAE) != _pae_sha256. Demonstrates the verifier catching content tampering.


kind: chain-link tamper

note: prev rewritten (PAE recomputed so hash still passes) -> chain link breaks. Demonstrates the verifier catching a broken hash chain.