{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:L4UZKA6BKPEORZOGMSL5FDX37K","short_pith_number":"pith:L4UZKA6B","canonical_record":{"source":{"id":"0905.0200","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2009-05-02T11:42:50Z","cross_cats_sorted":[],"title_canon_sha256":"c308004996c880f328c2525a67c952f0aef780fd635276ac9a4b7c2c6fbed570","abstract_canon_sha256":"ed8147ec27eb76388e8a1d9ae6d90bb5c91c8a41d46f3647bbd726b6282e5121"},"schema_version":"1.0"},"canonical_sha256":"5f299503c153c8e8e5c66497d28efbfa9532c4033ac7d9cf227addeef605dee9","source":{"kind":"arxiv","id":"0905.0200","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0905.0200","created_at":"2026-05-18T01:06:24Z"},{"alias_kind":"arxiv_version","alias_value":"0905.0200v1","created_at":"2026-05-18T01:06:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0905.0200","created_at":"2026-05-18T01:06:24Z"},{"alias_kind":"pith_short_12","alias_value":"L4UZKA6BKPEO","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"L4UZKA6BKPEORZOG","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"L4UZKA6B","created_at":"2026-05-18T12:26:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:L4UZKA6BKPEORZOGMSL5FDX37K","target":"record","payload":{"canonical_record":{"source":{"id":"0905.0200","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2009-05-02T11:42:50Z","cross_cats_sorted":[],"title_canon_sha256":"c308004996c880f328c2525a67c952f0aef780fd635276ac9a4b7c2c6fbed570","abstract_canon_sha256":"ed8147ec27eb76388e8a1d9ae6d90bb5c91c8a41d46f3647bbd726b6282e5121"},"schema_version":"1.0"},"canonical_sha256":"5f299503c153c8e8e5c66497d28efbfa9532c4033ac7d9cf227addeef605dee9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:06:24.945002Z","signature_b64":"O3pLQoFqRTXb1Brh1/kpkAxlqVghE9/OcdXSG2RBpr2G2DF5zFpc9EwGtDHv7aAOYMM62JdgtbPNgXxusABwCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f299503c153c8e8e5c66497d28efbfa9532c4033ac7d9cf227addeef605dee9","last_reissued_at":"2026-05-18T01:06:24.944603Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:06:24.944603Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0905.0200","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:06:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BsXwuEokEMAyrgCnnNHgpt8rOTZVvF/lFpfppUc9mJAHS3eVP7wl8HK/AV89egUBBqFdcisIeurA0hWyyD28DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T02:53:12.823446Z"},"content_sha256":"95037ef6ad4c20be5658dec438cb9dee06228288a4ac83196df1d469e49927f0","schema_version":"1.0","event_id":"sha256:95037ef6ad4c20be5658dec438cb9dee06228288a4ac83196df1d469e49927f0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:L4UZKA6BKPEORZOGMSL5FDX37K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Vehicle for Research: Using Street Sweepers to Explore the Landscape of Environmental Community Action","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.HC","authors_text":"Alan Mainwaring, Allison Woodruff, Chris Myers, Eric Paulos, Paul M. Aoki, R.J. Honicky, Sushmita Subramanian","submitted_at":"2009-05-02T11:42:50Z","abstract_excerpt":"Researchers are developing mobile sensing platforms to facilitate public awareness of environmental conditions. However, turning such awareness into practical community action and political change requires more than just collecting and presenting data. To inform research on mobile environmental sensing, we conducted design fieldwork with government, private, and public interest stakeholders. In parallel, we built an environmental air quality sensing system and deployed it on street sweeping vehicles in a major U.S. city; this served as a \"research vehicle\" by grounding our interviews and affor"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0905.0200","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:06:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bh0nN9xoymHZ98sAlzmOLcNd7rvQaUa/+k2rGh0HN2lpVvAVXwm3gN6j1bVxJb9+E+fSTJATuldRiMSzHvDEBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T02:53:12.824092Z"},"content_sha256":"2a5370fa6dd7f193f6fc019c878a9bce006dc7b1db04176519d1ecc74459e9fa","schema_version":"1.0","event_id":"sha256:2a5370fa6dd7f193f6fc019c878a9bce006dc7b1db04176519d1ecc74459e9fa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L4UZKA6BKPEORZOGMSL5FDX37K/bundle.json","state_url":"https://pith.science/pith/L4UZKA6BKPEORZOGMSL5FDX37K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L4UZKA6BKPEORZOGMSL5FDX37K/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-24T02:53:12Z","links":{"resolver":"https://pith.science/pith/L4UZKA6BKPEORZOGMSL5FDX37K","bundle":"https://pith.science/pith/L4UZKA6BKPEORZOGMSL5FDX37K/bundle.json","state":"https://pith.science/pith/L4UZKA6BKPEORZOGMSL5FDX37K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L4UZKA6BKPEORZOGMSL5FDX37K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:L4UZKA6BKPEORZOGMSL5FDX37K","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"ed8147ec27eb76388e8a1d9ae6d90bb5c91c8a41d46f3647bbd726b6282e5121","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2009-05-02T11:42:50Z","title_canon_sha256":"c308004996c880f328c2525a67c952f0aef780fd635276ac9a4b7c2c6fbed570"},"schema_version":"1.0","source":{"id":"0905.0200","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0905.0200","created_at":"2026-05-18T01:06:24Z"},{"alias_kind":"arxiv_version","alias_value":"0905.0200v1","created_at":"2026-05-18T01:06:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0905.0200","created_at":"2026-05-18T01:06:24Z"},{"alias_kind":"pith_short_12","alias_value":"L4UZKA6BKPEO","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"L4UZKA6BKPEORZOG","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"L4UZKA6B","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:2a5370fa6dd7f193f6fc019c878a9bce006dc7b1db04176519d1ecc74459e9fa","target":"graph","created_at":"2026-05-18T01:06:24Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Researchers are developing mobile sensing platforms to facilitate public awareness of environmental conditions. However, turning such awareness into practical community action and political change requires more than just collecting and presenting data. To inform research on mobile environmental sensing, we conducted design fieldwork with government, private, and public interest stakeholders. In parallel, we built an environmental air quality sensing system and deployed it on street sweeping vehicles in a major U.S. city; this served as a \"research vehicle\" by grounding our interviews and affor","authors_text":"Alan Mainwaring, Allison Woodruff, Chris Myers, Eric Paulos, Paul M. Aoki, R.J. Honicky, Sushmita Subramanian","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2009-05-02T11:42:50Z","title":"A Vehicle for Research: Using Street Sweepers to Explore the Landscape of Environmental Community Action"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0905.0200","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:95037ef6ad4c20be5658dec438cb9dee06228288a4ac83196df1d469e49927f0","target":"record","created_at":"2026-05-18T01:06:24Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"ed8147ec27eb76388e8a1d9ae6d90bb5c91c8a41d46f3647bbd726b6282e5121","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2009-05-02T11:42:50Z","title_canon_sha256":"c308004996c880f328c2525a67c952f0aef780fd635276ac9a4b7c2c6fbed570"},"schema_version":"1.0","source":{"id":"0905.0200","kind":"arxiv","version":1}},"canonical_sha256":"5f299503c153c8e8e5c66497d28efbfa9532c4033ac7d9cf227addeef605dee9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f299503c153c8e8e5c66497d28efbfa9532c4033ac7d9cf227addeef605dee9","first_computed_at":"2026-05-18T01:06:24.944603Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:06:24.944603Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O3pLQoFqRTXb1Brh1/kpkAxlqVghE9/OcdXSG2RBpr2G2DF5zFpc9EwGtDHv7aAOYMM62JdgtbPNgXxusABwCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:06:24.945002Z","signed_message":"canonical_sha256_bytes"},"source_id":"0905.0200","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:95037ef6ad4c20be5658dec438cb9dee06228288a4ac83196df1d469e49927f0","sha256:2a5370fa6dd7f193f6fc019c878a9bce006dc7b1db04176519d1ecc74459e9fa"],"state_sha256":"ef7dfe3f5ab23cc5724f1ed2b94a242ffbf8e912bad3ab37ec2a6f3435853246"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DEsQ0SjNLIX/nWS3wSH+sbqJwqf0WWerKbC7/N9iNbYIjq6Dv2RYdWU+BjYFWlSCOVdN51nT/RRPbjIhpqnVBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T02:53:12.827147Z","bundle_sha256":"8fd0d08336c0c7ce058fb4246f5d92a9059ffe89813d6243aeee4f4379deb755"}}