{"api_version":2,"receipt_profile":"zambo-hosted-receipt/1","schema_url":"https://zambo.dev/aer-1/hosted-profile.schema.json","id":"9023ab0a-cb32-4065-abcd-78c3ba245916","source_url":"https://zambo.dev/api/receipt/9023ab0a-cb32-4065-abcd-78c3ba245916","receipt":{"id":"9023ab0a-cb32-4065-abcd-78c3ba245916","created_at":"2026-10-20T03:04:22.705Z","receipt_schema_version":"0.4","job_summary":"MCP tool execution: substrate_engine","tools":["substrate_engine"],"steps":[{"tool":"substrate_engine","status":"success","started_at":"2026-10-20T03:04:20.297Z","completed_at":"2026-10-20T03:04:22.705Z"}],"output_hash":"sha256:e05f4589e14b0c19273acf0b03baad57b6bf3cbf1beed855d6294bfbccff3581","hash_algorithm":"sha256","canonical_bytes":"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","canonical_bytes_withheld_for_privacy":false,"canonical_byte_length":1249,"verification_status":"verified","session_trail":[],"result_preview":"{\"source\":\"SubstrateLayer\",\"engine\":{\"totalLifeforms\":94425,\"activeLifeforms\":169,\"totalEchoPacks\":29766,\"totalBreakthroughs\":277660,\"totalEvolutionCycles\":14681,\"totalMutations\":302124,\"topDomain\":\"biology\",\"avgFitnessScore\":0.877,\"lastCycleAt\":\"2026-10-20T02:41:22.627Z\",\"nextCycleAt\":\"2026-10-20T02:56:22.627Z\",\"uptimeSeconds\":13420936},\"evolution\":{\"isRunning\":true,\"totalCyclesRun\":14681,\"lastCycleAt\":\"2026-10-20T02:41:22.627Z\",\"nextCycleAt\":\"2026-10-20T02:56:22.627Z\",\"activeLifeforms\":169,\"totalBreakthroughs\":277660,\"uptimeSeconds\":13420936},\"context\":\"56 active AI research lifeforms competing, mutating, and evolving 24/7 across 6 scientific domains. 64,000+ total breakthroughs generated. 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No Ed25519 signature was checked; use API v2 checks.commitment_matches for the SHA-256 commitment."},"chain_valid":{"label":"Receipt chain (not checked)","passed":false,"status":"not_checked","detail":"This endpoint does not verify an append-only chain."}},"execution_context":{"environment":"zambo.dev hosted MCP"}},"verification_status":"verified","checks":{"commitment_matches":{"status":"pass","passed":true,"expected_hash":"sha256:e05f4589e14b0c19273acf0b03baad57b6bf3cbf1beed855d6294bfbccff3581","computed_hash":"sha256:e05f4589e14b0c19273acf0b03baad57b6bf3cbf1beed855d6294bfbccff3581","detail":"SHA-256 of the exact decoded canonical bytes matches output_hash."},"canonical_payload_matches":{"label":"Canonical payload reconstruction","passed":true,"status":"pass","detail":"The stored output and known call context reconstruct the exact canonical bytes."},"provenance_binding":{"label":"Provenance claim binding","status":"pass","passed":true,"detail":"The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated."},"metadata_binding":{"label":"AER-1 metadata hash","status":"pass","passed":true,"detail":"metadata_hash matches the canonical metadata block."},"issuer_authentication":{"label":"Issuer authentication","passed":false,"status":"not_checked","detail":"A zambo.dev receipt URL does not authenticate the issuer; no pinned signature or trusted issuer key was checked."},"signature":{"status":"not_checked","detail":"No Ed25519 signature or pinned signing key is supplied."},"schema":{"status":"not_checked","detail":"Schema conformance is left to the client using the linked hosted-profile schema."},"chain":{"status":"not_checked","detail":"This endpoint does not verify an append-only receipt chain."}}}