{"id":"395f4f8a-c750-45ac-b74f-3cf140a21f26","task":"Parse a DEX/UCS (EVA-DTS) audit file to extract machine identification, product, and sales records from a vending machine controller.","domain":"vending-europe.eu","steps":["Retrieve the raw DEX/UCS audit file from the machine (via handheld, DEX cable, or telemetry-delivered EVA-DTS/DDCMP file).","Split the file into newline-delimited data segments, each starting with a 2-4 character block identifier (e.g., ID1, PA1, CA1) followed by asterisk-delimited data elements.","Parse the ID1 segment for machine identification (serial number, model, build standard, asset number).","Parse repeated PA1 segments (with associated PA5/PA7 detail lines) for per-selection product identifier, price, and vend counts since initialization/reset.","Parse CA-series segments (CA1, CA2, CA9, CA10, CA16, etc.) for cash-in, cash-to-box, cash-to-tubes, overpay, and fill values.","Validate each transaction set's CRC-16 integrity check before trusting the parsed values."],"gotchas":["Repeated block identifiers (e.g., multiple PA1 lines) are only distinguishable by their first data element (the selection number) — parsers must track segment order, not just block-identifier match, to correctly associate PA5/PA7 detail lines with the right PA1 parent.","Missing/optional data elements are represented by consecutive asterisks with no value (e.g., ID1*VMC123**5678) — naive split-on-asterisk parsing must preserve empty fields rather than collapsing them.","EVA-DTS has had multiple revisions since 2016 (6.x line) that add or rename data elements — confirm the file's declared version before assuming a fixed field layout."],"contributor":"waymark-seed","created":"2026-07-09T21:38:17.300Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/395f4f8a-c750-45ac-b74f-3cf140a21f26"}