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the handover for suite-slot client (demo for a completion that returned success but never delivered a terminal receipt): Worker reports completion success. Instead of trusting the ack, the work is saved as a handover: status stays open until the receiving client accepts, and acceptance itself mints t. https://zambo.dev/handover/6559deb6-7fb1-435e-bb8e-8e70e1d539e6 Each listed step has a verifiable receipt you can check in your browser.\",\"workflow_receipt_url\":\"https://zambo.dev/run/000e2b70-645f-4872-a981-3c3357c6a89f\",\"verify_url\":\"https://zambo.dev/api/v2/receipt/000e2b70-645f-4872-a981-3c3357c6a89f/verify\",\"steps\":7,\"ai_use_statement\":\"AI use: Unspecified AI helped with 3 of 7 steps. See the listed receipts.\",\"graph\":{\"aer\":\"draft-zambo-aer1-24\",\"edges\":[{\"to\":\"n2\",\"from\":\"n1\",\"kind\":\"next\"},{\"to\":\"n3\",\"from\":\"n2\",\"kind\":\"next\"},{\"to\":\"n4\",\"from\":\"n3\",\"kind\":\"next\"},{\"to\":\"n5\",\"from\":\"n4\",\"kind\":\"next\"}],\"nodes\":[{\"ai\":{\"name\":\"Zambo rubric\",\"used\":false},\"id\":\"n1\",\"seal\":{\"reason\":\"An eligible pass is required to seal this workflow. Individual receipts remain available.\",\"sealed\":false},\"type\":\"plan\",\"label\":\"Plan bounded checks\",\"receipt\":\"be407add-8757-49de-9519-3fd2436f9f7a\"},{\"ai\":{\"name\":\"Unspecified AI\",\"used\":true},\"id\":\"n2\",\"seal\":{\"reason\":\"An eligible pass is required to seal this workflow. Individual receipts remain available.\",\"sealed\":false},\"type\":\"do\",\"label\":\"your work\",\"receipt\":\"3ee8332f-4a9a-460b-8eac-1242be8ec141\"},{\"ai\":{\"name\":\"Zambo rubric\",\"used\":false},\"id\":\"n3\",\"seal\":{\"reason\":\"An eligible pass is required to seal this workflow. Individual receipts remain available.\",\"sealed\":false},\"type\":\"check\",\"check\":{\"what\":\"Bounded citation rubric: each supplied statement has an inline URL or citation marker\",\"reason\":\"Citation markers do not establish that a source supports a statement.\",\"result\":\"failed_unfixed\"},\"label\":\"Check citation markers\",\"receipt\":\"d59f7e91-eb56-42be-8578-826abf2f8189\"},{\"ai\":{\"name\":\"Zambo rubric\",\"used\":false},\"id\":\"n4\",\"seal\":{\"reason\":\"An eligible pass is required to seal this workflow. Individual receipts remain available.\",\"sealed\":false},\"type\":\"check\",\"check\":{\"what\":\"Check numbers have citations\",\"reason\":\"Additional checks require a pass after the first free loop.\",\"result\":\"not_checked\"},\"label\":\"Check numbers have citations\",\"receipt\":\"2ae22544-584f-4e6d-afb2-383d8ef5d991\"},{\"ai\":{\"name\":\"Zambo rubric\",\"used\":false},\"id\":\"n5\",\"seal\":{\"reason\":\"An eligible pass is required to seal this workflow. Individual receipts remain available.\",\"sealed\":false},\"type\":\"check\",\"check\":{\"what\":\"Retries and optional second-AI review\",\"reason\":\"Available with a pass after the first free loop.\",\"result\":\"not_checked\"},\"label\":\"Additional review and retries skipped\",\"receipt\":\"ad65bb24-f0b1-4cfa-ba7b-5ac91cb7f2e5\"}],\"access\":{\"mode\":\"check_only\",\"payment\":{\"amount\":\"990000\",\"pay_to\":\"0xb753…b9AC\",\"network\":\"eip155:8453\",\"x402_url\":\"https://zambo.dev/api/x402/day-pass\",\"retry_same_call\":true},\"gate_line\":\"Nothing was published. Your free calls for this tool are used for today. Keep going now: $0.99 for 24 hours: https://zambo.dev/day-pass/?ref=limit. After paying, repeat the same call with the same _session_id.\"},\"issues\":[\"Could not fix: Bounded citation rubric: each supplied statement has an inline URL or citation marker - Citation markers do not establish that a source supports a statement.\"],\"schema\":\"zambo.graph/1\",\"retries\":{\"max\":2,\"used\":0},\"sources\":{\"resolved\":0,\"not_checked\":0,\"not_resolved\":0},\"summary\":\"Checked 1 thing, fixed 0, 1 could not be fixed (marked), all receipts attached.\",\"template\":\"research-with-sources\",\"planned_scope\":{\"note\":\"Next steps are planned work, not recorded executions. This loop checks only the supplied work.\",\"total\":3,\"not_checked\":3}},\"progress\":\"Checked 1 thing, fixed 0, 1 could not be fixed (marked), all receipts attached.\",\"graph_url\":\"https://zambo.dev/handover/6559deb6-7fb1-435e-bb8e-8e70e1d539e6/graph.json\",\"sources\":{\"resolved\":0,\"not_resolved\":0,\"not_checked\":0},\"warnings\":[],\"acceptance_url\":\"https://zambo.dev/handover/6559deb6-7fb1-435e-bb8e-8e70e1d539e6/acceptance.json\",\"release_hint\":\"hold\",\"ais\":[\"Unspecified AI\"],\"not_checked\":[\"The supplied work was saved, not independently executed or checked.\"],\"shield\":\"pass\",\"visibility\":\"public\",\"redactions\":0,\"owner_url\":\"https://zambo.dev/handover/6559deb6-7fb1-435e-bb8e-8e70e1d539e6\",\"seal_next\":\"Keep workflow_manage_token private. With an active pass, call workflow_seal with workflow_id, workflow_manage_token and the same _session_id used for this handover. Sealing, including the dispute pack, requires a pass.\"}","result_preview_integrity":"display_only_not_committed","result_preview_truncated":false,"input_hash":"sha256:ca6992e65a9663200b57c613649486cffb131fb2d2aebf7288575aeb03b5bc67","input_hash_layout":"zambo-json-sorted-keys-utf8-v1","free_used":1,"free_remaining":19,"free_limit":20,"signal_handle":null,"tool":{"name":"handover","version":"4.0.0","scope":"public"},"caller":{"type":"anonymous","id":"sha256:14040caab10803db6d46ffdb20633eaea9144253fdfd2813bf8e0d659c8bf4a1","basis":"ip_ua_30d","rotates_at":"2026-11-03T00:00:00.000Z"},"side_effects":{"declared":["none"],"schema_version":"zambo-side-effects/1","declaration_hash":"sha256:45aad38f3aa982b9aafe92ecb416ebe98791eddbaf8ab6df0bd08605b7c1bfee"},"evidence_sha256":"sha256:61e63bfd9f24a4b335e5776f10b935a22c86b55b0aeed8215e90203bf1173bc8","evidence_url":"/api/evidence/61e63bfd9f24a4b335e5776f10b935a22c86b55b0aeed8215e90203bf1173bc8","evidence_byte_length":747,"evidence_content_type":"application/json","evidence_source_url":null,"evidence_status":"captured","external_evidence":[],"provenance":null,"provenance_class":"EXECUTED BY ZAMBO","metadata_hash":"sha256:c51f28f780158ecd609be168d97d40779a9871b4084dbfc05fb57d9ae9bd1f3e","anchor":{"event_id":"21195088a45daf73dee872227c81b0f834d4c2a69a081acc3e9a2babf5f6227c","pubkey":"e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41","relays":["wss://relay.damus.io","wss://nos.lol","wss://relay.primal.net"],"status":"partial","published_at":"2026-10-21T10:47:13.697Z","schema_version":"zambo-receipt-anchor/1","envelope":{"anchored_at":"2026-10-21T10:47:12.661Z","evidence_url":"https://zambo.dev/api/evidence/61e63bfd9f24a4b335e5776f10b935a22c86b55b0aeed8215e90203bf1173bc8","receipt_uuid":"ac9a5b30-87a7-4e83-803f-b09de4fc9e47","output_sha256":"sha256:8a0bd5580a3ac06e16821989f7fd1de1b35d233b51fbfb8b4d4876b552d213fa","schema_version":"zambo-receipt-anchor/1","evidence_sha256":"sha256:61e63bfd9f24a4b335e5776f10b935a22c86b55b0aeed8215e90203bf1173bc8","evidence_byte_length":747},"envelope_bytes":"{\"anchored_at\":\"2026-10-21T10:47:12.661Z\",\"evidence_byte_length\":747,\"evidence_sha256\":\"sha256:61e63bfd9f24a4b335e5776f10b935a22c86b55b0aeed8215e90203bf1173bc8\",\"evidence_url\":\"https://zambo.dev/api/evidence/61e63bfd9f24a4b335e5776f10b935a22c86b55b0aeed8215e90203bf1173bc8\",\"output_sha256\":\"sha256:8a0bd5580a3ac06e16821989f7fd1de1b35d233b51fbfb8b4d4876b552d213fa\",\"receipt_uuid\":\"ac9a5b30-87a7-4e83-803f-b09de4fc9e47\",\"schema_version\":\"zambo-receipt-anchor/1\"}"},"receipt_profile":"zambo-hosted-receipt/1","schema_url":"https://zambo.dev/aer-1/hosted-profile.schema.json","api_version":1,"verification_scope":"separate_sha256_commitment_and_provenance_binding_checks","checks":{"commitment_matches":{"label":"SHA-256 commitment","passed":true,"status":"pass","detail":"The exact decoded canonical bytes match the stored SHA-256 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."},"signature":{"label":"Ed25519 signature (not checked)","passed":false,"status":"not_checked","detail":"No Ed25519 signature or pinned signing key was checked."},"chain":{"label":"Receipt chain (not checked)","passed":false,"status":"not_checked","detail":"No append-only receipt-chain proof was checked."},"issued_by_zambo_dev":{"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."},"immutable_log_timestamp":{"label":"Stored timestamp","passed":true,"timestamp":"2026-10-21T10:47:12.661Z","detail":"The receipt store reports 2026-10-21T10:47:12.661Z; immutability is not checked here."},"receipt_schema_version":"0.4","signature_valid":{"label":"Ed25519 signature (not checked)","passed":false,"status":"not_checked","detail":"Compatibility field only. 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":"sha256:8a0bd5580a3ac06e16821989f7fd1de1b35d233b51fbfb8b4d4876b552d213fa","computed_hash":"sha256:8a0bd5580a3ac06e16821989f7fd1de1b35d233b51fbfb8b4d4876b552d213fa","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."}}}