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Sam Gregory, programme director, WITNESS presentation at the Guardian Activate Summit: London 2012
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Sam Gregory, programme director, WITNESS presentation at the Guardian Activate Summit: London 2012

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  • JSON Evidentiary Mobile Media Metadata Specification- A format that can be used to easily describe the origins, context, and content of any image or video taken with a mobile device. - Maintains a trusted record of chain-of-custody.- Expresses the context surrounding the media object’s capture - Embeds extra user input into the media object as signed metadata. - Provides metrics for analyzing the content of the media object.
  • JSON Evidentiary Mobile Media Metadata Specification- A format that can be used to easily describe the origins, context, and content of any image or video taken with a mobile device. - Maintains a trusted record of chain-of-custody.- Expresses the context surrounding the media object’s capture - Embeds extra user input into the media object as signed metadata. - Provides metrics for analyzing the content of the media object.
  • Transcript

    • 1. “Trust Me, This Happened”Enhancing Citizen Media asHuman Rights Evidence andNews Source
    • 2. "locations": { "imageRegions": [{ "locationOnMediaCapture": { "timestampOnGeneration": 1234354657, "latitude": -73.32345, "locationOnGeneration": { "longitude": 41.1344026, "latitude": -73.32345, "cellId": 129510, "longitude": 41.1344026, "accelerometer": { "cellId": 129510 "x": 2.44, }, "y": 4.32, "obfuscationType": "org.witness.securesmartcam.filters.ConsentTag "z": -0.034 "regionDimensions": [320,320], } "regionCoordinates": [176,367], }, "unredactedHash": "HASH-OF-IMAGE-REGION-DATA", "locationOnMediaSave": { "processedHash": "HASH-OF-IMAGE-REGION-DATA-AFTER-PROCESSING", "latitude": -73.32345, "subject": { "longitude": 41.1344026, "subjectName": "Pseudonym of subject or description", "cellId": 129510 "informedConsentGiven": true, } "consentGivent": [ }, 101, 102,"corroboration": [ 103 { "data": { "btNeighboringDevice": { "imageHash": "HASH-OF-ENTIRE-IMAGE-DATA", "deviceName": "A Neighboring BT-enabled Device", "timestamps": { "address": "00:22:33:44:55:66” "timestampOnMediaCapture": 12334456, } "timestampReportedInExifData": 123455678, }, "timestampOnMediaSave": 123546678 { }, "btNeighboringDevice": { "sourceType": 101, "deviceName": "Another Neighboring BT-enabled Device", "device": { "address": "00:22:33:44:55:66" "key": "RSA-512-Hash-of-device", } } "IMEI": "IMEIOfDevice" ], }, {"sourceObject”:{ "intent": { "ownership": { "key": "PGPKEY-OF-OWNER", "ownershipType": 25, "bluetoothAddress": "00:22:33:44:55:66" }, "securityLevel": 1 }, "geneaology": { "localMediaPath": "/path/to/source/image/on/device", "dateCreated": 12345689, "dateAcquired": 123455689, "intendedDestination": "PUBLIC-KEY-OF-SPONSORING-ORGANIZATION" },
    • 3. The Human Rights Channel on Youtube.com/h umanrights
    • 4. blog.witness.orgyoutube.com/humanright s twitter/samgregory Thanks to monkeytown toilet wall

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