at.adsb.receiver.sighting

adsb.at

Schema Diff

+51 -35

From

CID
bafyreida5vnwrzf...
Indexed At
2026-05-23 20:59 UTC
View this version

To

CID
bafyreigfusjjsxx...
Indexed At
2026-05-25 20:10 UTC
View this version

Compatibility Analysis

Breaking Changes Detected

16 breaking changes, 21 non-breaking changes.

Breaking Changes (16)
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.callsign" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.firstSeen" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.icaoHex" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.lastSeen" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.maxRangeNm" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.messageCount" }
  • RemovedVertex RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.positionCount" }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.callsign", kind: "prop", name: Some("callsign") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.firstSeen", kind: "prop", name: Some("firstSeen") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.icaoHex", kind: "prop", name: Some("icaoHex") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.lastSeen", kind: "prop", name: Some("lastSeen") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.maxRangeNm", kind: "prop", name: Some("maxRangeNm") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.messageCount", kind: "prop", name: Some("messageCount") }
  • RemovedEdge RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.positionCount", kind: "prop", name: Some("positionCount") }
  • ConstraintAdded ConstraintAdded { vertex_id: "at.adsb.receiver.sighting#manifestEntry.icaoHex", sort: "minLength", value: "6" }
  • ConstraintAdded ConstraintAdded { vertex_id: "at.adsb.receiver.sighting#manifestEntry.icaoHex", sort: "maxLength", value: "6" }
Non-Breaking Changes (21)
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting#manifestEntry" }
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting#manifestEntry.icaoHex" }
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.manifest" }
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.manifest:items" }
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.rawCapture" }
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.telemetry" }
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.windowEnd" }
  • AddedVertex AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.windowStart" }
  • AddedEdge AddedEdge { src: "at.adsb.receiver.sighting#manifestEntry", tgt: "at.adsb.receiver.sighting#manifestEntry.icaoHex", kind: "prop", name: Some("icaoHex") }
  • AddedEdge AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.manifest", kind: "prop", name: Some("manifest") }
  • AddedEdge AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.rawCapture", kind: "prop", name: Some("rawCapture") }
  • AddedEdge AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.telemetry", kind: "prop", name: Some("telemetry") }
  • AddedEdge AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.windowEnd", kind: "prop", name: Some("windowEnd") }
  • AddedEdge AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.windowStart", kind: "prop", name: Some("windowStart") }
  • AddedEdge AddedEdge { src: "at.adsb.receiver.sighting:body.manifest", tgt: "at.adsb.receiver.sighting:body.manifest:items", kind: "items", name: None }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.messageCount", sort: "minimum" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.callsign", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.icaoHex", sort: "minLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.icaoHex", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.positionCount", sort: "minimum" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.maxRangeNm", sort: "maxLength" }

Migration Guidance

Removed Elements

  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.callsign" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.firstSeen" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.icaoHex" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.lastSeen" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.maxRangeNm" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.messageCount" }
  • RemovedVertex { vertex_id: "at.adsb.receiver.sighting:body.positionCount" }

Added Elements

  • AddedVertex { vertex_id: "at.adsb.receiver.sighting#manifestEntry" }
  • AddedVertex { vertex_id: "at.adsb.receiver.sighting#manifestEntry.icaoHex" }
  • AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.manifest" }
  • AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.manifest:items" }
  • AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.rawCapture" }
  • AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.telemetry" }
  • AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.windowEnd" }
  • AddedVertex { vertex_id: "at.adsb.receiver.sighting:body.windowStart" }

Constraint Changes

  • ConstraintAdded ConstraintAdded { vertex_id: "at.adsb.receiver.sighting#manifestEntry.icaoHex", sort: "maxLength", value: "6" }
  • ConstraintAdded ConstraintAdded { vertex_id: "at.adsb.receiver.sighting#manifestEntry.icaoHex", sort: "minLength", value: "6" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.maxRangeNm", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.callsign", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.icaoHex", sort: "minLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.icaoHex", sort: "maxLength" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.messageCount", sort: "minimum" }
  • ConstraintRemoved ConstraintRemoved { vertex_id: "at.adsb.receiver.sighting:body.positionCount", sort: "minimum" }

Additional Notes

  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.callsign", kind: "prop", name: Some("callsign") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.firstSeen", kind: "prop", name: Some("firstSeen") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.icaoHex", kind: "prop", name: Some("icaoHex") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.lastSeen", kind: "prop", name: Some("lastSeen") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.maxRangeNm", kind: "prop", name: Some("maxRangeNm") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.messageCount", kind: "prop", name: Some("messageCount") }
  • Breaking: RemovedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.positionCount", kind: "prop", name: Some("positionCount") }
  • Non-breaking: AddedEdge { src: "at.adsb.receiver.sighting#manifestEntry", tgt: "at.adsb.receiver.sighting#manifestEntry.icaoHex", kind: "prop", name: Some("icaoHex") }
  • Non-breaking: AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.manifest", kind: "prop", name: Some("manifest") }
  • Non-breaking: AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.rawCapture", kind: "prop", name: Some("rawCapture") }
  • Non-breaking: AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.telemetry", kind: "prop", name: Some("telemetry") }
  • Non-breaking: AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.windowEnd", kind: "prop", name: Some("windowEnd") }
  • Non-breaking: AddedEdge { src: "at.adsb.receiver.sighting:body", tgt: "at.adsb.receiver.sighting:body.windowStart", kind: "prop", name: Some("windowStart") }
  • Non-breaking: AddedEdge { src: "at.adsb.receiver.sighting:body.manifest", tgt: "at.adsb.receiver.sighting:body.manifest:items", kind: "items", name: None }
1 1 
{
2 2 
  "id": "at.adsb.receiver.sighting",
3 3 
  "defs": {
4 4 
    "main": {
5 5 
      "key": "tid",
6 6 
      "type": "record",
7 7 
      "record": {
8 8 
        "type": "object",
9 9 
        "required": [
10 - 
          "icaoHex",
11 - 
          "firstSeen",
12 - 
          "lastSeen",
10 + 
          "windowStart",
11 + 
          "windowEnd",
12 + 
          "manifest",
13 + 
          "telemetry",
13 14 
          "createdAt"
14 15 
        ],
15 16 
        "properties": {
16 - 
          "icaoHex": {
17 - 
            "type": "string",
18 - 
            "maxLength": 6,
19 - 
            "minLength": 6,
20 - 
            "description": "ICAO 24-bit aircraft address in hexadecimal (e.g. 'A1B2C3')."
17 + 
          "manifest": {
18 + 
            "type": "array",
19 + 
            "items": {
20 + 
              "ref": "#manifestEntry",
21 + 
              "type": "ref"
22 + 
            },
23 + 
            "maxLength": 1000,
24 + 
            "minLength": 1,
25 + 
            "description": "Lightweight list of all aircraft observed in this window."
21 26 
          },
22 - 
          "callsign": {
27 + 
          "createdAt": {
23 28 
            "type": "string",
24 - 
            "maxLength": 8,
25 - 
            "description": "Flight callsign as broadcast (e.g. 'UAL123')."
29 + 
            "format": "datetime"
26 30 
          },
27 - 
          "lastSeen": {
31 + 
          "telemetry": {
32 + 
            "type": "blob",
33 + 
            "accept": [
34 + 
              "application/zstd"
35 + 
            ],
36 + 
            "maxSize": 2000000,
37 + 
            "description": "Zstd-compressed JSON object keyed by ICAO hex, values are arrays of at.adsb.flight.defs#position objects."
38 + 
          },
39 + 
          "windowEnd": {
28 40 
            "type": "string",
29 41 
            "format": "datetime",
30 - 
            "description": "When this receiver last detected the aircraft."
42 + 
            "description": "End of the observation window (exclusive)."
31 43 
          },
32 - 
          "createdAt": {
33 - 
            "type": "string",
34 - 
            "format": "datetime"
44 + 
          "rawCapture": {
45 + 
            "type": "blob",
46 + 
            "accept": [
47 + 
              "application/vnd.at-adsb.raw-capture+zstd"
48 + 
            ],
49 + 
            "maxSize": 2000000,
50 + 
            "description": "Raw demodulated SDR frames captured during this window, in ATRX envelope format. Optional — strengthens provenance but not required."
35 51 
          },
36 - 
          "firstSeen": {
52 + 
          "windowStart": {
37 53 
            "type": "string",
38 54 
            "format": "datetime",
39 - 
            "description": "When this receiver first detected the aircraft."
40 - 
          },
41 - 
          "maxRangeNm": {
42 - 
            "type": "string",
43 - 
            "maxLength": 20,
44 - 
            "description": "Furthest distance to this aircraft during the sighting, in nautical miles."
45 - 
          },
46 - 
          "messageCount": {
47 - 
            "type": "integer",
48 - 
            "minimum": 0,
49 - 
            "description": "Total messages received from this aircraft."
50 - 
          },
51 - 
          "positionCount": {
52 - 
            "type": "integer",
53 - 
            "minimum": 0,
54 - 
            "description": "Number of position reports received."
55 + 
            "description": "Start of the observation window (inclusive)."
55 56 
          }
56 57 
        }
57 58 
      },
58 - 
      "description": "A receiver's sighting of an aircraft transit through its coverage area."
59 + 
      "description": "A receiver's batch sighting covering a configurable observation window."
60 + 
    },
61 + 
    "manifestEntry": {
62 + 
      "type": "object",
63 + 
      "required": [
64 + 
        "icaoHex"
65 + 
      ],
66 + 
      "properties": {
67 + 
        "icaoHex": {
68 + 
          "type": "string",
69 + 
          "maxLength": 6,
70 + 
          "minLength": 6,
71 + 
          "description": "ICAO 24-bit hex address (uppercased)."
72 + 
        }
73 + 
      },
74 + 
      "description": "An aircraft observed in this batch window."
59 75 
    }
60 76 
  },
61 77 
  "$type": "com.atproto.lexicon.schema",
62 78 
  "lexicon": 1,
63 - 
  "description": "A single receiver's sighting of an aircraft. Created when the aircraft leaves the receiver's coverage area. Feeder-authoritative — published immediately without waiting for the full flight to complete."
79 + 
  "description": "A batch of aircraft observations from a single receiver covering a configurable time window (default 60 seconds). Contains a manifest of observed aircraft and blobbed telemetry data."
64 80 
}

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Lexicon Garden

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