{"run_id":"run-20260831T222144Z","student_id":"s12","generated_at":"2026-09-01T02:07:00.083288+00:00","observations":[{"provenance":{"temperature":0.0,"model_id":"gemini-3.6-flash","ts":"2026-08-31T22:21:52.567945Z","prompt_version":"p2"},"needs_human":false,"student_id":"s12","observation_id":"obs-s12-c1-a1","verification":{"positional":true,"quote_check":true,"referential":true,"second_reader":null,"entailment":true},"text":"States a position that city governments should build and operate their own broadband networks in the opening paragraph, outlining five reasons that structure the subsequent body paragraphs.","supersedes":null,"run_id":"run-20260831T222144Z","anchor_confidence":"exact","attempts":1,"source_projection":"text","needs_human_reason":null,"kind":"evidence","created_at":"2026-08-31T22:21:52.567945Z","citation":{"quote_hash":"b55187047564d44780444285180973859df9bd4780e6eea473462871a1aa0307","suffix":"","span_id":"sp-0001","prefix":"ame category of civic plumbing. ","quote":"City governments should build and operate their own broadband networks, because municipal ownership finances fiber on the timeline the asset actually deserves, extends service to blocks that private buildouts pass over, subjects rates and repair standards to public accountability, keeps subscriber revenue circulating in the local economy, and creates the physical conditions for competition at the retail layer."},"search_notes":null,"review":null,"criterion_id":"c1"},{"provenance":{"temperature":0.0,"model_id":"gemini-3.6-flash","ts":"2026-08-31T22:21:52.567945Z","prompt_version":"p2"},"needs_human":false,"student_id":"s12","observation_id":"obs-s12-c2-a1","verification":{"positional":true,"quote_check":true,"referential":true,"second_reader":null,"entailment":true},"text":"Cites published findings with parenthetical page numbers to support the claim that municipal financing structures allow longer amortization periods than investor-owned carriers.","supersedes":null,"run_id":"run-20260831T222144Z","anchor_confidence":"exact","attempts":1,"source_projection":"text","needs_human_reason":null,"kind":"evidence","created_at":"2026-08-31T22:21:52.567945Z","citation":{"quote_hash":"fc044b2a8405f8d6f84a0624d7c25b9a648bf6cee09991bf75242b5493b77bba","suffix":" The same hole in the same stree","span_id":"sp-0002","prefix":" in the trench (Achterberg 66). ","quote":"Achterberg's comparison of capital structures found that investor-owned carriers evaluate a buildout against a five- to seven-year payback window, because that is the horizon their lenders and shareholders require; municipal utilities issuing revenue bonds routinely amortize the same trench over twenty-five or thirty years, and at interest rates two to three points lower (67)."},"search_notes":null,"review":null,"criterion_id":"c2"},{"provenance":{"temperature":0.0,"model_id":"gemini-3.6-flash","ts":"2026-08-31T22:21:52.567945Z","prompt_version":"p2"},"needs_human":false,"student_id":"s12","observation_id":"obs-s12-c3-a1","verification":{"positional":true,"quote_check":true,"referential":true,"second_reader":null,"entailment":true},"text":"Uses ordinal transition words at the start of paragraphs to signal the progression of arguments.","supersedes":null,"run_id":"run-20260831T222144Z","anchor_confidence":"exact","attempts":1,"source_projection":"text","needs_human_reason":null,"kind":"evidence","created_at":"2026-08-31T22:21:52.567945Z","citation":{"quote_hash":"4d6907079ccd95eae03be69cc3fd43d35304f07c141a33bed5e50d6bd9036cc6","suffix":" Density drives the arithmetic o","span_id":"sp-0003","prefix":"","quote":"Second, public networks serve addresses that private plans leave off the map."},"search_notes":null,"review":null,"criterion_id":"c3"},{"provenance":{"temperature":0.0,"model_id":"gemini-3.6-flash","ts":"2026-08-31T22:21:52.567945Z","prompt_version":"p2"},"needs_human":false,"student_id":"s12","observation_id":"obs-s12-c4-a1","verification":{"positional":null,"quote_check":null,"referential":null,"second_reader":null,"entailment":null},"text":"No passage addressing this criterion was located.","supersedes":null,"run_id":"run-20260831T222144Z","anchor_confidence":"exact","attempts":1,"source_projection":"text","needs_human_reason":null,"kind":"no_evidence","created_at":"2026-08-31T22:21:52.567945Z","citation":null,"search_notes":"no passage addressing counterarguments or objections to municipal broadband was located in spans sp-0000 to sp-0007","review":null,"criterion_id":"c4"},{"provenance":{"temperature":0.0,"model_id":"gemini-3.6-flash","ts":"2026-08-31T22:21:52.567945Z","prompt_version":"p2"},"needs_human":false,"student_id":"s12","observation_id":"obs-s12-c5-a1","verification":{"positional":true,"quote_check":true,"referential":true,"second_reader":null,"entailment":true},"text":"Uses complete sentence structures with internal punctuation and parenthetical citations.","supersedes":null,"run_id":"run-20260831T222144Z","anchor_confidence":"exact","attempts":1,"source_projection":"text","needs_human_reason":null,"kind":"evidence","created_at":"2026-08-31T22:21:52.567945Z","citation":{"quote_hash":"2dba2573cc3e858ec9ccc7eb90084654134129c1d37c19ebc51a3bf9eb9ac157","suffix":" A resident who dislikes a propo","span_id":"sp-0004","prefix":"nswers to the people it serves. ","quote":"Rates for the Hollisford municipal system are set by ordinance, debated at a public meeting, and printed in the same billing document as water and refuse charges (Achterberg 69)."},"search_notes":null,"review":null,"criterion_id":"c5"}],"supersession_chain":[],"rendition":{"rendition_id":"ceae6e3116e60c2e2eb6802b6109875dd048a041407773e5029afeaf01f4e8e9","source_projection":"text","anchor_capability":"exact","spans":{"sp-0006":[4399,5191],"sp-0005":[3559,4397],"sp-0004":[2789,3557],"sp-0003":[1877,2787],"sp-0007":[5193,5946],"sp-0001":[82,859],"sp-0000":[0,80],"sp-0002":[861,1875]},"text":"# Public Fiber: Why Cities Should Build and Operate Their Own Broadband Networks\n\nEvery city already owns something it seldom counts as wealth: the dirt under its streets, the poles that line them, and the legal authority to open the ground. Cities use that asset to move water in and sewage out, and in hundreds of places to sell electricity to residents at rates set in public. Fiber-optic cable belongs in the same category of civic plumbing. City governments should build and operate their own broadband networks, because municipal ownership finances fiber on the timeline the asset actually deserves, extends service to blocks that private buildouts pass over, subjects rates and repair standards to public accountability, keeps subscriber revenue circulating in the local economy, and creates the physical conditions for competition at the retail layer.\n\nFirst, the financing structure favors public ownership. Fiber is a durable asset. Once conduit is in the ground and strands are pulled, the physical plant carries traffic for thirty to forty years with modest maintenance, and upgrades happen at the electronics on either end rather than in the trench (Achterberg 66). Achterberg's comparison of capital structures found that investor-owned carriers evaluate a buildout against a five- to seven-year payback window, because that is the horizon their lenders and shareholders require; municipal utilities issuing revenue bonds routinely amortize the same trench over twenty-five or thirty years, and at interest rates two to three points lower (67). The same hole in the same street produces a very different monthly bill depending on who pays for it and how fast they need the money back. A city can build fiber that pencils out at forty-five dollars a month for a symmetric gigabit. A firm that must clear its cost of capital in six years cannot reach that number.\n\nSecond, public networks serve addresses that private plans leave off the map. Density drives the arithmetic of a buildout: the fewer households per mile of road, the more each connection costs to reach. Lindqvistsson's survey of municipal fiber systems documented service extended to census blocks averaging six households per road mile, densities that appeared in no competitive carrier's published expansion plan for the surrounding counties (216). In Marnwood, the municipal utility ran fiber down every road on which it already maintained streetlights, which meant the last farmhouse at the county line received the same connection as the downtown apartment blocks, at the same posted price (Lindqvistsson 218). A private network draws its boundary where the projected return stops. A public network draws its boundary at the city limits, because the households past the profitable line pay taxes and vote.\n\nThird, a city-owned network answers to the people it serves. Rates for the Hollisford municipal system are set by ordinance, debated at a public meeting, and printed in the same billing document as water and refuse charges (Achterberg 69). A resident who dislikes a proposed increase can testify at that meeting. A resident who wants the outage log can request it under state public records law. Service standards can be written into the enabling ordinance itself — maximum repair times, automatic credits for downtime, a published schedule of fees — and enforced by a council that stands for reelection every two or four years. Governance of this kind is ordinary in the water business and unremarkable in municipal electricity. Broadband deserves the same treatment.\n\nFourth, the revenue stays in town. Subscriber payments to a municipal system flow into a public enterprise fund rather than to a corporate headquarters several states away. Achterberg tracked the operating results of a set of city systems and found that, after debt service, the median network transferred the equivalent of nine percent of annual revenue back to the general fund or applied it to discounted rates for low-income households (70). Marlowe Bend directed its transfer toward the connections at the public schools, the library, and the community clinic, which removed three recurring line items from a budget that had been paying for them out of property tax receipts (Achterberg 71). Municipal fiber is one of the few pieces of civic infrastructure that pays part of its own construction cost and then keeps paying afterward.\n\nFinally, public fiber increases the number of companies selling service to residents. Under an open-access design, the city builds and maintains the physical layer and leases strands on identical published terms to any retail provider willing to sell over them. Lindqvistsson found that open-access municipal systems supported a median of four retail providers per market, and that advertised prices for a hundred-megabit tier in those markets ran nine to fourteen dollars per month below prices in comparable markets where one carrier controlled both the glass and the service sold across it (221). The proper municipal role is to own the layer that behaves as a natural monopoly — the trench, the conduit, the strands — so that the layers capable of supporting competition actually host it.\n\nThe case for municipal broadband is cumulative. Public financing matches the useful life of the asset. Public boundaries reach the households that a return-on-investment map excludes. Public governance puts rates and repair obligations on a meeting agenda. Public ownership keeps subscriber dollars inside the local budget. Public infrastructure at the physical layer makes room for several sellers above it. Cities already know how to run a utility: they meter it, bill for it, maintain it, and answer for it in front of a microphone. Adding fiber to the list of services a city delivers is a small institutional step and a large one for the households at the end of the line. Councils should authorize the bonds, hire the engineers, and start digging."},"anomalies":[{"kind":"no_evidence","criterion_id":"c4","detail":"no passage addressing counterarguments or objections to municipal broadband was located in spans sp-0000 to sp-0007","event_id":"NoEvidenceRecorded~s12__c4~a1"}],"verification":{"source_event_count":228,"range_hash":"5e55e10a6ea61508929986ded3b9b26895fa1461711b1cb9f2e5552ea33935c6","how_to_verify":"karani verify --artifact <rendered.json> --log <events.jsonl> re-folds the log and compares the range hash. A packet whose hash does not match its log has diverged from the record."},"what_this_packet_does_not_contain":"A grade, a score, a rank, or any assessment of quality. No such field exists on any record in this system."}